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Troubleshooting

 

239

 

Parameters 

Permitted Values 

Default 

Settings->Configuration->Export System Log 

Phone User Interface: 

None 

syslog.server 

IP address or 

domain name 

Blank 

Description: 

Configures the IP address or domain name of the syslog server when exporting log 
to the syslog server.

 

Example: 

syslog.server = 192.168.1.50 

Note: It works only if the parameter “syslog.mode” is set to 1 (Server). If you 
change this parameter, the IP phone will reboot to make the change take effect. 

Web User Interface:

 

Settings->Configuration->Server Name 

Phone User Interface: 

None 

syslog.log_level 

Integer from 0 to 6 

3 

Description: 

Configures the detail level of syslog information to be exported.

 

0: system is unusable 

1: action must be taken immediately 

2: critical condition 

3: error conditions 

4: warning conditions 

5: normal but significant condition 

6: informational 

Note: If you change this parameter, the IP phone will reboot to make the change 
take effect. 

Web User Interface:

 

Settings->Configuration->System Log Level 

Phone User Interface: 

None 

 

 

Summary of Contents for Yealink SIP-T48G

Page 1: ...啊 ...

Page 2: ...NFORMATION REGARDING THE PRODUCTS IN THIS GUIDE ARE SUBJECT TO CHANGE WITHOUT NOTICE ALL STATEMENTS INFORMATION AND RECOMMENDATIONS IN THIS GUIDE ARE BELIEVED TO BE ACCURATE AND PRESENTED WITHOUT WARRANTY OF ANY KIND EXPRESS OR IMPLIED USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF PRODUCTS YEALINK NETWORK TECHNOLOGY CO LTD MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS GUIDE INCL...

Page 3: ... cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures 1 Reorient or relocate the receiving antenna 2 Increase the separation between the equipment and receiver 3 Connect the equipment into an outlet on a circuit different from that to...

Page 4: ...the specific terms of the GPL Please refer to the GPL for the exact terms and conditions of the license The original GPL license source code of components licensed under GPL and used in Yealink products can be downloaded from Yealink web site http www yealink com GPLOpenSource aspx BaseInfoCateId 293 NewsCateId 293 CateId 293 ...

Page 5: ...on files y0000000000xx cfg and MAC cfg template configuration files For support or service please contact your Yealink reseller or go to Yealink Technical Support online http www yealink com Support aspx The information detailed in this guide is applicable to the IP phones running Lync firmware version 7 or higher The firmware format is like x x x x rom The second x from left must be greater than ...

Page 6: ...oting describes how to troubleshoot IP phones and provides some common troubleshooting solutions Chapter 8 Appendix provides the glossary reference information about IP phones compliant with RFC 3261 SIP call flows and the sample configuration files This section describes the changes to this guide for each release and guide version Major update has occurred to the following section Viewing Log Fil...

Page 7: ...Process Overview 13 Verifying Startup 14 Reading Icons 15 Configuration Methods 17 Phone User Interface 17 Web User Interface 17 Configuration Files 18 Obtaining Configuration Files and Resource Files 19 Provisioning Server 20 Supported Provisioning Protocols 20 Setting up the Provisioning Server 21 Deploying Phones from the Provisioning Server 21 Configuring Basic Network Parameters 22 DHCP 23 DH...

Page 8: ... Language 92 Loading Language Packs 93 Specifying the Language to Use 96 Logo Customization 98 Customizing a Logo Template File 99 Configuring the Logo Shown on the Idle Screen 100 Key as send 102 Dial Plan 107 Dial now 108 Save Call Log 110 Missed Call Log 112 Dial Search Delay 113 Live Dialpad 115 Call Waiting 117 Redial Tone 120 Ringer Device for Headset 121 Auto Answer 122 Always On Line 125 A...

Page 9: ...adset Prior 190 Dual Headset 191 Audio Codecs 193 Acoustic Clarity Technology 199 Acoustic Echo Cancellation 199 Background Noise Suppression 200 Automatic Gain Control 200 Voice Activity Detection 200 Comfort Noise Generation 202 Jitter Buffer 204 Configuring Security Features 207 User Password 207 Administrator Password 209 Auto Logout Time 210 Phone Lock 212 Account Lock 213 Transport Layer Sec...

Page 10: ...ning 250 What is PnP 250 Why doesn t the IP phone update the configuration 250 How to solve the IP conflict problem 250 How to reset the IP phone to factory configurations 251 How to restore the administrator password 251 Why does the IP phone play the local ringback tone instead of media when placing a long distance number without plus 0 251 What is the difference between enabling and disabling t...

Page 11: ...Table of Contents xi Call Transfer with Consultation 285 Always Call Forward 290 Busy Call Forward 293 No Answer Call Forward 297 Call Conference 300 Index 305 ...

Page 12: ...Microsoft Lync Edition Administrator s Guide for SIP T2_Series and T4_Series IP Phones xii ...

Page 13: ...23 standard addresses call signaling and control multimedia transport and control and bandwidth control for point to point and multi point conferences It is widely implemented by voice and video conference equipment manufacturers is used within various Internet real time applications such as GnuGK and NetMeeting and is widely deployed by service providers and enterprises for both voice and video s...

Page 14: ...fied by the transferring party and terminates the session between the transferee and the transferring party At the end of a call SIP terminates the sessions between all parties SIP is a peer to peer protocol The peers in a session are called User Agents UAs A user agent can function as one of following roles User Agent Client UAC A client application that initiates the SIP request User Agent Serve...

Page 15: ... phone models with Lync firmware It is designed to work with Microsoft Lync 2013 These IP phones are characterized by a large number of functions which simplify business communication with a high standard of security SIP T48G and SIP T22 P IP phones provide a powerful and flexible IP communication solution for Ethernet TCP IP networks delivering excellent voice quality When these IP phones are reg...

Page 16: ...crosoft LyncTM Compatible HD Voice HD Codec HD Handset HD Speaker 26 keys including 7 feature keys 1 RJ9 4P4C handset port 1 RJ9 4P4C headset port 2 RJ45 10 100 1000Mbps Ethernet ports 1 RJ12 6P6C expansion module port 4 LEDs 1 power 1 mute 1 headset 1 speakerphone Power adapter AC 100 240V input and DC 5V 2A output Power over Ethernet IEEE 802 3af Built in USB port support Bluetooth headset Wall ...

Page 17: ...ccount Microsoft LyncTM Compatible HD Voice HD Codec HD Handset HD Speaker 32 keys including 4 soft keys 1 RJ9 4P4C handset port 1 RJ9 4P4C headset port 2 RJ45 10 100Mbps Ethernet ports 5 LEDs 1 power 3 line 1 message Power adapter AC 100 240V input and DC 5V 1 2A output Power over Ethernet IEEE 802 3af Wall Mount ...

Page 18: ...C AJB AGC Full duplex speakerphone with AEC Network Features SIP v1 RFC2543 v2 RFC3261 Proxy mode and peer to peer SIP link mode IP assignment Static DHCP PPPoE VLAN assignment LLDP Static DHCP CDP Bridge and Router mode for PC port Router mode is only applicable to SIP T22 P IP phones HTTP HTTPS server DNS client DHCP server IPv6 support Management FTP TFTP HTTP PnP auto provision Configuration b...

Page 19: ...Product Overview 7 Admin User configuration mode 802 1X authentication ...

Page 20: ...Microsoft Lync Edition Administrator s Guide for SIP T2_Series and T4_Series IP Phones 8 ...

Page 21: ...nfiguration Methods Obtaining Configuration Files and Resource Files Provisioning Server Configuring Basic Network Parameters Upgrading Firmware This section introduces how to install SIP T48G and T22 P IP phones with components in packaging contents 1 Attach the stand and the optional wall mount bracket 2 Connect the handset and optional headset 3 Connect the network and power Note A headset wall...

Page 22: ...ies IP Phones 10 1 Attach the stand and the optional wall mount bracket For SIP T48G Desk Mount Method Wall Mount Method Optional Note The top two slots on SIP T48G IP phones are plugged up by silica gel You need to pull out silica gel before attaching the wall mount bracket ...

Page 23: ...dset For SIP T48G Note For SIP T22 P The headset and wireless headset adapter EHS36 should be purchased separately For more information on how to use the EHS36 on the IP phone refer to Yealink EHS36 User Guide For more information on how to mount the IP phone to a wall refer to Yealink Wall Mount Quick Installation Guide ...

Page 24: ...f the power adapter to the DC5V port on the IP phone and connect the other end of the power adapter into an electrical power outlet 2 Connect the included or a standard Ethernet cable between the Internet port on the IP phone and the one on the wall or switch hub device port Power over Ethernet With the included or a regular Ethernet cable IP phones can be powered from a PoE compliant switch or hu...

Page 25: ...IP phone The IP phone comes from the factory with a ROM file preloaded During initialization the IP phone runs a bootstrap loader that loads and executes the ROM file Configuring the VLAN If the IP phone is connected to a switch the switch notifies the IP phone of the VLAN information defined on the switch if using LLDP or CDP The IP phone can then proceed with the DHCP request for its network set...

Page 26: ...be able to resolve and update configurations written in the configuration file s If the IP phone does not obtain configurations from the provisioning server the IP phone will use configurations stored in the flash memory Updating firmware If the access URL of firmware is defined in the configuration file the IP phone will download firmware from the provisioning server If the MD5 value of the downl...

Page 27: ...he IP phone has successfully passed through these steps it starts up properly and is ready for use Icons associated with different features may appear on the LCD screen The following table provides a description for each icon on IP phones T48G T22 P Description Network is unavailable Sign in failed Signing in Call Mute Call Forward Answer a call Call Hold Call Resume Add a new call Call Transfer C...

Page 28: ...d Calls Return to previous screen Receive a call Make a call Handset mode Headset mode Hands free speakerphone mode Multi lingual lowercase letters input mode Multi lingual uppercase letters input mode Numeric input mode Alphanumeric input mode Voice Mail Ringer volume is 0 Phone Lock Available Busy DND Do Not Disturb Be Right Back Off Work Away ...

Page 29: ...nfiguration Files An administrator or a user can configure and use IP phones via phone user interface Access to specific features is restricted to the administrator The default password is admin case sensitive Not all features are available on phone user interface For more information refer to Yealink phone specific user guide available online http www yealink com DocumentDownload aspx CateId 142 ...

Page 30: ...be 00156574b150 cfg case sensitive Central Provisioning IP phones can be centrally provisioned from a provisioning server using the configuration files y0000000000xx cfg and MAC cfg You can use a text based editing application to edit configuration files and then store configuration files to a provisioning server For more information on the provisioning server refer to Provisioning Server on page ...

Page 31: ...to use the resource file the resource file access URL should be specified in the MAC cfg file The names of the Yealink supplied template files are Template File File Name Configuration Files Common CFG file Common cfg MAC Oriented CFG file MAC cfg Resource Files Language Packs For example 0 GUI English lang lang English txt DST Template AutoDST xml You can ask the distributor or Yealink FAE for te...

Page 32: ...tocols for provisioning including FTP TFTP HTTP and HTTPS protocols And you can specify the transport protocol in the provisioning server address for example http xxxxxxx If not specified the TFTP protocol is used The provisioning server address can be IP address domain name or URL If a user name and password are specified as part of the provisioning server address for example http user pwd server...

Page 33: ...n configuration file first and then the MAC Oriented file Therefore any parameter in the MAC Oriented configuration file will override the same one in the common configuration file Yealink supplies configuration files for each phone model which is delivered with the phone firmware The configuration files supplied with each firmware release must be used with that release Otherwise configurations ma...

Page 34: ...feature guides you to configure network settings and the provisioning server address via phone user interface after startup Zero Touch is only applicable to SIP T22 P IP phones PnP PnP feature allows IP phones to discover the provisioning server address by broadcasting the PnP SUBSCRIBE message during startup DHCP DHCP option can be used to provide the address or URL of the provisioning server to ...

Page 35: ... Configure DHCP on the IP phone Parameter network internet_port type Local Web User Interface Configure DHCP on the IP phone Navigate to http phoneIPAddress servlet p network q load Phone User Interface Configure DHCP on the IP phone Details of Configuration Parameters Parameters Permitted Values Default network internet_port type 0 1 or 2 0 Description Configures the Internet WAN port type for IP...

Page 36: ...will take effect after a reboot 4 Click OK to reboot the phone Static DNS address es can be configured and used when DHCP is enabled Procedure Static DNS can be configured using the configuration files or locally Configuration File y0000000000xx cfg Configure the static DNS feature Parameters network static_dns_enable MAC cfg Configure static DNS address Parameters network primary_dns network seco...

Page 37: ...ou change this parameter the IP phone will reboot to make the change take effect Web User Interface Network Basic IPv4 Config Static DNS Phone User Interface Menu Settings Advanced Settings default password admin Network WAN Port DNS Server Static DNS network primary_dns IPv4 Address Blank Description Configures the primary IPv4 DNS server Example network primary_dns 202 101 103 55 Note It works o...

Page 38: ... change take effect Web User Interface Network Basic IPv4 Config Static IP Address Secondary DNS Phone User Interface Menu Settings Advanced Settings default password admin Network WAN Port DNS Server Sec DNS To configure static DNS address when DHCP is used via web user interface 1 Click on Network Basic 2 In the IPv4 Config block mark the DHCP radio box 3 In the Static DNS block mark the On radi...

Page 39: ...DISCOVER messages to request the network information carried in DHCP options and the DHCP server responds with specific values in corresponding options The following table lists common DHCP options supported by IP phones Parameter DHCP Option Description Subnet Mask 1 Specify the client s subnet mask Time Offset 2 Specify the offset of the client s subnet in seconds from Coordinated Universal Time...

Page 40: ...P options for discovering the provisioning server on the DHCP server an alternate method of automatically discovering the provisioning server address is required Connecting to the secondary DHCP server that responds to DHCP INFORM queries with a requested provisioning server address is one possibility For more information refer to http www ietf org rfc rfc3925 txt number 3925 The following shows t...

Page 41: ...on files or locally Configuration File y0000000000xx cfg Configure DHCP active Parameters auto_provision dhcp_option enable Local Web User Interface Configure DHCP active Navigate to http phoneIPAddress servlet p settings autop q load Details of Configuration Parameters Parameters Permitted Values Default auto_provision dhcp_option enable 0 or 1 1 Description Triggers the DHCP Option feature to on...

Page 42: ...sitive Procedure DHCP option 60 can be configured using the configuration files or locally Configuration File y0000000000xx cfg Configure DHCP option 60 Parameters auto_provision dhcp_option optio n60_value Local Web User Interface Configure DHCP option 60 Navigate to http phoneIPAddress servlet p settings autop q load Details of Configuration Parameters Parameters Permitted Values Default auto_pr...

Page 43: ...t the change Yealink IP phones support using the NTP server address offered by DHCP DHCP option 42 is used to specify a list of NTP servers available to the client by IP address NTP servers should be listed in order of preference DHCP option 2 is used to specify the offset of the client s subnet in seconds from Coordinated Universal Time UTC To update time with the offset time offered by the DHCP ...

Page 44: ...P option 12 hostname Navigate to http phoneIPAddress servlet p features general q load Details of Configuration Parameters Parameters Permitted Values Default network dhcp_host_name String within 99 characters Refer to the following content Description Configures the DHCP option 12 hostname on the IP phone For SIP T48G IP phones The default value is SIP T48G For SIP T22 P IP phones The default val...

Page 45: ...upport obtaining Lync server address from DHCP DHCP option 120 is used to specify a list of Lync servers available to the client Procedure DHCP option 120 can be configured using the configuration files or locally Configuration File y0000000000xx cfg Configure DHCP option 120 Parameters sip option120_get_lync_server enable Local Web User Interface Configure DHCP option 120 Navigate to http phoneIP...

Page 46: ... Lync server address from DHCP by detecting DHCP option 120 0 Disabled 1 Enabled Web User Interface Features General Information Use DHCP Option 120 Phone User Interface None To configure DHCP option 120 on the IP phone via web user interface 1 Click on Feature General Information 2 Select desired value from the pull down list of Use DHCP Option 120 3 Click Confirm to accept the change If DHCP is ...

Page 47: ...Parameters network internet_port type network ip_address_mode network internet_port ip network internet_port mask network internet_port gateway network primary_dns network secondary_dns Local Web User Interface Configure network parameters of the IP phone manually Navigate to http phoneIPAddress servlet p network q load Phone User Interface Configure network parameters of the IP phone manually Det...

Page 48: ...ote If you change this parameter the IP phone will reboot to make the change take effect Web User Interface Network Basic Internet Port Mode IPv4 IPv6 Phone User Interface Menu Settings Advanced Settings default password admin Network WAN Port IP Mode network internet_port ip IPv4 Address Blank Description Configures the IPv4 address Example network internet_port ip 192 168 1 20 Note It works only...

Page 49: ...ser Interface Menu Settings Advanced Settings default password admin Network WAN Port IPv4 Static IP Client Subnet Mask network internet_port gateway IPv4 Address Blank Description Configures the IPv4 default gateway Example network internet_port gateway 192 168 1 254 Note It works only if the value of the parameter network ip_address_mode is set to 0 IPv4 or 2 IPv4 IPv6 and network internet_port ...

Page 50: ...ne User Interface Menu Settings Advanced Settings default password admin Network DNS Server Pri DNS network secondary_dns IPv4 Address Blank Description Configures the secondary IPv4 DNS server Example network secondary_dns 202 101 103 54 Note It works only if the value of the parameter network ip_address_mode is set to 0 IPv4 or 2 IPv4 IPv6 and network internet_port type is set to 2 Static IP Add...

Page 51: ...o reboot the phone To configure a static IPv4 address via web user interface 1 Click on Network Basic 2 In the IPv4 Config block mark the Static IP Address radio box 3 Enter the desired values in the IP Address Subnet Mask Gateway Primary DNS and Secondary DNS fields 4 Click Confirm to accept the change A dialog box pops up to prompt that settings will take effect after a reboot 5 Click OK to rebo...

Page 52: ...4 Subnet Mask and Default Gateway fields respectively 6 Press the Save soft key to accept the change The IP phone reboots automatically to make settings effective after a period of time PPPoE Point to Point Protocol over Ethernet is a network protocol used by Internet Service Providers ISPs to provide Digital Subscriber Line DSL high speed Internet services PPPoE allows an office or building full ...

Page 53: ...mode is set to 0 IPv4 or 2 IPv4 IPv6 If you change this parameter the IP phone will reboot to make the change take effect Web User Interface Network Basic IPv4 Config DHCP PPPoE Static IP Address Phone User Interface Menu Settings Advanced Settings default password admin Network WAN Port IPv4 network pppoe user String within 32 characters Blank Description Configures the user name for PPPoE connec...

Page 54: ...ppoe password yealink123 Note It works only if the value of the parameter network ip_address_mode is set to 0 IPv4 or 2 IPv4 IPv6 and network internet_port type is set to 1 PPPoE If you change this parameter the IP phone will reboot to make the change take effect Web User Interface Network Basic IPv4 Config PPPoE Password Phone User Interface Menu Settings Advanced Settings default password admin ...

Page 55: ...t ports on the back of the IP phone Internet port and PC port Three optional methods of transmission configuration for IP phone Internet or PC Ethernet ports Auto negotiate Half duplex Full duplex Auto negotiate is configured for both Internet and PC ports on the IP phone by default Auto negotiate Auto negotiate means that two connected devices choose common transmission parameters e g speed and d...

Page 56: ...bps Full duplex Full duplex transmission refers to transmitting voice or data in both directions at the same time this means one device can send data on the line while receiving data You can configure the full duplex transmission on both Internet port and PC port for the IP phone to transmit in 10Mbps 100Mbps or 1000Mbps 1000Mbps is only applicable to SIP T48G IP phones Procedure The transmission ...

Page 57: ...0Mbps 4 Half Duplex 100Mbps 5 Full Duplex 1000Mbps only applicable to SIP T48G IP phones Note We recommend that you do not change this parameter If you change this parameter the IP phone will reboot to make the change take effect Web User Interface Network Advanced Port Link WAN Port Link Phone User Interface None network pc_port speed_duplex 0 1 2 3 4 or 5 0 Description Configures the transmissio...

Page 58: ...ods of Ethernet ports via web user interface 1 Click on Network Advanced 2 Select the desired value from the pull down list of WAN Port Link 3 Select the desired value from the pull down list of PC Port Link 4 Click Confirm to accept the change The PC port on the back of the IP phone is used to connect a PC Procedure PC port mode can be configured using the configuration files or locally Configura...

Page 59: ...rk parameters of the PC port Navigate to http phoneIPAddress servlet p network pcport q load Details of Configuration Parameters Parameters Permitted Values Default network pc_port enable 0 or 1 1 Description Enables or disables the PC LAN port 0 Disabled 1 Auto Negotiation Note If you change this parameter the IP phone will reboot to make the change take effect Web User Interface Network PC Port ...

Page 60: ... network pc_port enable is set to 1 Auto Negotiation and network bridge_mode is set to 0 As Router If you change this parameter the IP phone will reboot to make the change take effect It is only applicable to SIP T22 P IP phones Web User Interface Network PC Port PC Port Config IP Address Phone User Interface None network pc_port mask Subnet Mask 255 255 255 0 Description Configures the subnet mas...

Page 61: ...meter network pc_port enable is set to 1 Auto Negotiation network bridge_mode is set to 0 As Router and network pc_port dhcp_server is set to 1 Enabled If you change this parameter the IP phone will reboot to make the change take effect It is only applicable to SIP T22 P IP phones Web User Interface Network PC Port PC Port Config Start IP Address Phone User Interface None network dhcp end_ip IP Ad...

Page 62: ...he pull down list of PC Port Active 3 Click Confirm to accept the change A dialog box pops up to prompt that settings will take effect after a reboot 4 Click OK to reboot the phone To disable the PC port via web user interface 1 Click on Network PC Port 2 Select Disabled from the pull down list of PC Port Active 3 Click Confirm to accept the change A dialog box pops up to prompt that settings will...

Page 63: ...his section provides information on upgrading the IP phone firmware Two methods of firmware upgrade Manually from the local system for a single phone Automatically from the provisioning server or Lync server for a mass of phones The following table lists the associated and latest firmware name for each IP phone model X is replaced by the actual firmware version IP Phone Model Associated Firmware N...

Page 64: ... complete Please don t power off 4 Click OK to confirm the upgrade Note IP phones support using FTP TFTP HTTP and HTTPS protocols to download configuration files and firmware from the provisioning server and then upgrade firmware automatically IP phones can download firmware stored on the provisioning server in one of two ways Check for configuration files and then download firmware during startup...

Page 65: ...d_time auto_provision weekly dayofweek Specify the access URL of firmware Parameter firmware url Local Web User Interface Configure the way for the IP phone to check for configuration files Navigate to http phoneIPAddress servlet p s ettings autop q load Details of Configuration Parameters Parameters Permitted Values Default auto_provision power_on 0 or 1 1 Description Triggers the power on featur...

Page 66: ...rovision repeat minutes Integer from 1 to 43200 1440 Description Configures the interval in minutes for the IP phone to perform an auto provisioning process repeatedly Note It works only if the value of the parameter auto_provision repeat enable is set to 1 On Web User Interface Settings Auto Provision Interval Minutes Phone User Interface None auto_provision weekly enable 0 or 1 0 Description Tri...

Page 67: ...rovision weekly end_time Time from 00 00 to 23 59 00 00 Description Configures the end time of the day for the IP phone to perform an auto provisioning process weekly Note It works only if the value of the parameter auto_provision weekly enable is set to 1 On Web User Interface Settings Auto Provision Time Phone User Interface None auto_provision weekly dayofweek 0 1 2 3 4 5 6 or a combination of ...

Page 68: ...eb User Interface Settings Auto Provision Day of Week Phone User Interface None firmware url URL within 511 characters Blank Description Configures the access URL of the firmware file Example firmware url http 192 168 1 20 7 7 0 50 rom Note If you change this parameter the IP phone will reboot to make the change take effect Web User Interface Settings Upgrade Select and Upgrade Firmware Phone User...

Page 69: ...server You can update firmware of Yealink SIP T48G T22 P Lync phones from Lync server There are two ways to update firmware from Lync server Automatic Update Manual Update Before updating firmware from Lync server you must upload the update package CAB to your Lync server in advance For more information refer to Updating Lync Phone Firmware from Microsoft Lync Server available online http www yeal...

Page 70: ... up with a delay of 10 minutes after the phone returns back to the idle screen Sign out If the phone is powered on and no user signs in the phone automatically checks if an update is available on Lync server after the designated time If there is an update available the phone will automatically update firmware Note Update Checking Time Update checking time defines a period of time for IP phone to a...

Page 71: ... If it is set to 1 1 hour the IP phone will check if a firmware update is available on the Lync server every 1 hour If there is an update available the phone will prompt for an update Note If you change this parameter the IP phone will reboot to make the change take effect Web User Interface Features General Information Update Checking Time Phone User Interface None To configure update checking ti...

Page 72: ... on it again The phone will boot up check for updates and apply the updates You can also trigger an update manually via phone user interface To trigger an update manually via phone user interface 1 Press Menu Settings Basic Settings Firmware Update 2 Press the Enter soft key or the OK key The LCD screen prompts New firmware update now 3 Press the OK soft key to confirm the update If there is no up...

Page 73: ...ype Time and Date Language Logo Customization Key as send Dial Plan Save Call Log Missed Call Log Dial Search Delay Live Dialpad Call Waiting Redial Tone Ringer Device for Headset Auto Answer Always On Line Allow Mute Busy Tone Delay Return Code When Refuse Early Media 180 Ring Workaround Call Hold Call Number Filter DTMF Voice Mail without PIN E911 Location Tip Boss Admin Light ...

Page 74: ...lows the power indicator LED to flash when the IP phone receives a voice mail Mute Power Light On Mute Power Light On allows the power indicator LED to flash when a call is mute Hold Held Power Light On Hold Held Power Light On allows the power indicator LED to flash when a call is placed on hold or is held Talk Dial Power Light On Talk Dial Power Light On allows the power indicator LED to be turn...

Page 75: ...the power indicator LED to be turned on 0 Disabled power indicator LED is off 1 Enabled power indicator LED is solid red Web User Interface Features Power LED Common Power Light On Phone User Interface None phone_setting ring_power_led_flash_enable 0 or 1 1 Description Enables or disables the power indicator LED to flash when the IP phone receives an incoming call 0 Disabled power indicator LED do...

Page 76: ...cription Enables or disables the power indicator LED to flash when a call is mute 0 Disabled power indicator LED does not flash 1 Enabled power indicator LED fast flashes 300ms red Web User Interface Features Power LED Mute Power Light On Phone User Interface None phone_setting hold_and_held_power_led_flash_enable 0 or 1 0 Description Enables or disables the power indicator LED to flash when a cal...

Page 77: ...ght Flash 4 Select the desired value from the pull down list of Voice Text Mail Power Light Flash 5 Select the desired value from the pull down list of Mute Power Light On 6 Select the desired value from the pull down list of Hold Held Power Light On 7 Select the desired value from the pull down list of Talk Dial Power Light On 8 Click Confirm to accept the change Backlight determines the brightne...

Page 78: ...he phone is inactive Backlight Active Level and Backlight Inactive Level are only applicable to SIP T48G IP phones The following table lists available methods and configuration options to configure the backlight of phone models Phone Model Configuration Methods Configuration Options SIP T48G Configuration Files Web User Interface Phone User Interface Backlight Inactive Level Backlight Active Level...

Page 79: ... Backlight Backlight Active Level phone_setting inactive_backlight_level 0 or 1 1 Description Configures the intensity of the LCD screen when the phone is inactive 0 Off 1 Low Note It is only applicable to SIP T48G IP phones Web User Interface Settings Preference Backlight Inactive Level Phone User Interface Menu Basic Display Backlight Backlight Inactive Level phone_setting backlight_time 0 1 15 ...

Page 80: ...e IP phone has been inactive for 60 seconds For SIP T48G The default value is 0 For T22 P The default value is 30 Web User Interface Settings Preference Backlight Time seconds Phone User Interface Menu Settings Basic Settings Backlight Backlight Time To configure backlight via web user interface take SIP T22P IP phones for example 1 Click on Settings Preference 2 Select the desired value from the ...

Page 81: ...list of Backlight Time seconds 5 Click Confirm to accept the change To configure the backlight via phone user interface take SIP T48G IP phones for example 1 Tap Basic Display Backlight 2 Select the desired level from the pull down list of Backlight Active Level 3 Select the desired value from the pull down list of Backlight Inactive Level 4 Select the desired time from the pull down list of Backl...

Page 82: ...N Authentication method Parameters account sign_in pin_number account sign_in pin_password Local Web User Interface Configure User Credentials method Navigate to http phoneIPAddress servl et p account register lync q load acc 0 Phone User Interface Configure User Credentials method Configure PIN Authentication method Details of Configuration Parameters Parameters Permitted Values Default account s...

Page 83: ...16 yealinkuc com Web User Interface Account Register Register Name Phone User Interface For SIP T48G User Sign in User Name For SIP T22 P Sign in User Credentials User Name account sign_in password String within 99 characters Blank Description Configures the password for the User Credentials User Sign in method Web User Interface Account Register Password Phone User Interface For SIP T48G User Sig...

Page 84: ...count Register 2 Enter the desired value in the Login address field 3 Enter the desired user name in the Register name field 4 Enter the desired password in the Password field 5 Click Confirm to accept the change To sign in to Lync server with the User Credentials method via phone user interface take SIP T22P IP phones for example 1 Press Sign in User Credentials 2 Enter the desired value in the S...

Page 85: ... the Extension field 3 Enter the desired pin in the Pin field 4 Press the Sign in soft key Web server type determines access protocol of the IP phone s web user interface IP phones support both HTTP and HTTPS protocols for accessing the web user interface HTTP is an application protocol that runs on top of the TCP IP suite of protocols HTTPS is a web protocol that encrypts and decrypts user page r...

Page 86: ...ter the IP phone will reboot to make the change take effect Web User Interface Network Advanced Web Server HTTP Phone User Interface Menu Settings Advanced Settings default password admin Network Webserver Type HTTP Status network port http Integer from 1 to 65535 80 Description Configures the HTTP port for the user to access web user interface of the IP phone using the HTTP protocol Note If you c...

Page 87: ...TTPS port for the user to access web user interface of the IP phone using the HTTPS protocol Note If you change this parameter the IP phone will reboot to make the change take effect Web User Interface Network Advanced Web Server HTTPS Port 1 65535 Phone User Interface Menu Settings Advanced Settings default password admin Network Webserver Type HTTPS Port To configure web server type via web user...

Page 88: ...password admin Network Webserver Type 2 Press or or the Switch soft key to select the desired value from the HTTP Status field 3 Enter the desired HTTP port number in the Http port field 4 Press or or the Switch soft key to select the desired value from the HTTPS Status field 5 Enter the desired HTTPS port number in the HTTPS Port field 6 Press the Save soft key to accept the change The IP phone r...

Page 89: ...actual time from a reference clock and distributes this information to the clients in a network The Network Time Protocol NTP is the most widely used protocol that distributes and synchronizes time in the network The IP phones synchronize the time and date automatically from the NTP time server by default The NTP time server address can be offered by the DHCP server or configured manually NTP by D...

Page 90: ...cal_time time_zone_name Local Web User Interface Configure DHCP time feature Configure the NTP server time zone Navigate to http phoneIPAddress servlet p settings datetime q load Phone User Interface Configure DHCP time feature Configure the NTP server and time zone Details of Configuration Parameters Parameters Permitted Values Default local_time dhcp_time 0 or 1 0 Description Enables or disables...

Page 91: ...r Domain Name cn pool ntp org Description Configures the IP address or the domain name of the NTP server 2 If the NTP server 1 is not configured or cannot be accessed the IP phone will request the time and date from the NTP server 2 Example local_time ntp_server2 192 168 0 6 Web User Interface Settings Time Date Secondary Server Phone User Interface Menu Settings Basic Settings Time Date SNTP Sett...

Page 92: ...e parameter local_time time_zone For more information on the available time zone names for each time zone refer to Appendix B Time Zones on page 257 Example local_time time_zone_name China Beijing Note It works only if the value of the parameter local_time summer_time is set to 2 Automatic and the parameter local_time time_zone should be configured in advance Web User Interface Settings Time Date ...

Page 93: ... China Beijing 3 Enter the domain names or IP addresses in the NTP Server1 and NTP Server2 fields respectively 4 Press or or the Switch soft key to select the desired value from the DST field 5 Press the Save soft key to accept the change You can set the time and date manually when IP phones cannot obtain the time and date from the NTP time server The time and date display can use one of several d...

Page 94: ...ally Configure the time and date formats Details of Configuration Parameters Parameters Permitted Values Default local_time manual_time_enable 0 or 1 0 Description Enables or disables the IP phone to obtain time and date from manual settings 0 Diabled obtain time and date from NTP server 1 Enabled obtain time and date from manual settings Web User Interface Settings Time Date Manual Time Phone Use...

Page 95: ... values are 0 WWW MMM DD 1 DD MMM YY 2 YYYY MM DD 3 DD MM YYYY 4 MM DD YY 5 DD MMM YYYY 6 WWW DD MMM Note WWW represents the abbreviation of the week DD represents a two digit day MMM represents the first three letters of the month YYYY represents a four digit year and YY represents a two digit year Web User Interface Settings Time Date Date Format Phone User Interface Menu Settings Basic Settings...

Page 96: ...1 Click on Settings Time Date 2 Select the desired value from the pull down list of Time Format 3 Select the desired value from the pull down list of Date Format 4 Click Confirm to accept the change To configure the time and date manually via phone user interface 1 Press Menu Settings Basic Settings Time Date Manual Settings 2 Enter the date in the Date field 3 Enter the time in the Time field 4 P...

Page 97: ...orward one hour at the start of spring and backward in autumn Many countries have used the DST at various times details vary by location By default the DST is set to Automatic so it can be adjusted automatically from the current time zone configuration Procedure Daylight saving time can be configured using the configuration files or locally Configuration File MAC cfg Configure DST Parameters local...

Page 98: ...b User Interface Settings Time Date Fixed Type Phone User Interface None local_time start_time Time 1 1 0 Description Configures the start time of the DST Value formats are Month Day Hour for DST By Date Month Day of Week Last in Month Day of Week Hour of Day for DST By Week If local_time dst_time_type is set to 0 DST By Date use the mapping Month 1 January 2 February 12 December Day 1 the first d...

Page 99: ...h Day of Week Hour of Day for DST By Week If local_time dst_time_type is set to 0 DST By Date use the mapping Month 1 January 2 February 12 December Day 1 the first day in a month 31 the last day in a month Hour 0 0am 1 1am 23 11pm If local_time dst_time_type is set to 1 DST By Week use the mapping Month 1 January 2 February 12 December Day of Week Last in Month 1 the first week in a month 5 the l...

Page 100: ...ime Date Offset minutes Phone User Interface None To configure the DST via web user interface 1 Click on Settings Time Date 2 Select Disabled from the pull down list of Manual Time 3 Select the desired time zone from the pull down list of Time Zone 4 Enter the domain names or IP addresses in the Primary Server and Secondary Server fields respectively 5 Enter the desired time interval in the Synchr...

Page 101: ...ect the desired values of DST Start Month DST Start Day of Week DST Start Day of Week Last in Month Start Hour of Day DST Stop Month DST Stop Day of Week DST Stop Day of Week Last in Month and End Hour of Day from the pull down lists 7 Enter the desired offset time in the Offset minutes field 8 Click Confirm to accept the change ...

Page 102: ...ion Files and Resource Files on page 19 The following table lists description of each element in the template file Element Type Values Description DSTData required no File root element DST required no Time Zone item s root element szTime required X Y X 0 13 Y 0 59 Time Zone szZone required String if the content is more than one city it is the best to keep their daylight saving time the same Time Z...

Page 103: ... end time of the next year Customizing an AutoDST file 1 Open the AutoDST file using an ASCII editor 2 Add or modify time zone and DST settings as you want in the AutoDST file Example To modify the DST settings for the existing time zone 5 Pakistan Islamabad and add DST settings for the existing time zone 5 30 India Calcutta 3 Save this file and place it to the provisioning server e g 192 168 1 10...

Page 104: ...toDST xml After update you will find the updated DST of Pakistan Islamabad and India Calcutta via web user interface Settings Time Date Time Zone Note It works only if the value of the parameter local_time summer_time is set to 2 Automatic Web User Interface None Phone User Interface None IP phones support multiple languages Languages used on the phone user interface and web user interface can be ...

Page 105: ...ge 19 Note The following table lists the available languages and associated language packs for the phone user interface Available Language Associated Language Pack For SIP T48G Associated Language Pack For SIP T22 P English 0 GUI English lang lang English txt Chinese Simplified 1 GUI Chinese_S lang lang Chinese_S txt Chinese Traditional 2 GUI Chinese_T lang lang Chinese_T txt French 3 GUI French l...

Page 106: ... overridden by the new uploaded one We recommend that the filename of the new language pack should not be the same as the existing one To customize a language file 1 Open the desired language template file e g lang English txt using an ASCII editor 2 Modify the characters within the double quotation marks on the right of the equal sign Don t modify the translation item on the left of the equal sig...

Page 107: ...the custom LCD language pack for the phone user interface Example gui_lang url http 192 168 10 25 lang English txt During the auto provisioning process the IP phone connects to the HTTP provisioning server 192 168 10 25 and downloads the language pack lang English txt The English language translation will be changed accordingly if you have modified the language template file If you want to downloa...

Page 108: ...he phone user interface is English If the language of your web browser is not supported by the IP phone the web user interface will use English by default You can specify the languages for the phone user interface and web user interface respectively Procedure Specify the language for the phone user interface or the web user interface using the configuration files or locally Configuration File y000...

Page 109: ...rean Example lang gui English For SIP T48G If you want to use the custom language e g Guilan for the IP phone configure the parameter lang gui Guilan Web User Interface None Phone User Interface Menu Settings Basic Settings Language lang wui Refer to the following content English Description Configures the language used on the web user interface Permitted Values English Chinese_S Chinese_T French ...

Page 110: ...ace 1 Press Menu Settings Basic Settings Language 2 Press or to select the desired language 3 Press the Save soft key to accept the change Logo customization allows unifying the IP phone appearance or displaying a custom image on the idle screen such as a company logo instead of the default system logo Logo is only applicable to SIP T22 P IP phones The following table lists the supported logo file...

Page 111: ...format to dob format You can ask the distributor or Yealink FAE for the PictureExDemo tool To customize a dob formatted logo file using the PictureExDemo tool 1 Double click the PictureExDemo exe 2 Click Add button to open a gif jpg png bmp file You can repeat the second step to add multiple original picture files 3 Click the Convert button Then you can find the DOB logo files in the adv directory...

Page 112: ... Web User Interface Configure the logo shown on the idle screen Navigate to http phoneIPAddress servlet p features general q load Details of Configuration Parameters Parameters Permitted Values Default phone_setting lcd_logo mode 0 1 or 2 0 Description Configures the logo mode of the LCD screen 0 Off 1 System logo 2 Custom logo If it is set to 0 Off the IP phone is not allowed to display a logo If...

Page 113: ...he value of the parameter phone_setting lcd_logo mode is set to 2 Custom logo It is not applicable to SIP T48G IP phones Web User Interface Features General Information Upload Logo Phone User Interface None lcd_logo delete http localhost all Blank Description Deletes all custom logo files Example lcd_logo delete http localhost all Note It is not applicable to SIP T48G IP phones Web User Interface ...

Page 114: ...ound allows the IP phone to play a key tone when a user presses the send key Key tone allows the IP phone to play a key tone when a user presses any key Send sound works only if key tone is enabled Key tone is enabled by default Procedure Key as send can be configured using the configuration files or locally Configuration File y0000000000xx cfg Configure a send key Parameter features key_as_send C...

Page 115: ...terface Configure a send key Details of Configuration Parameters Parameters Permitted Values Default features key_as_send 0 1 or 2 1 Description Configures the or key as the send key 0 Disabled 1 key 2 key If it is set to 0 Disabled neither nor can be used as a send key If it is set to 1 key the pound key is used as the send key If it is set to 2 key the asterisk key is used as the send key Web Us...

Page 116: ...rface None features key_tone 0 or 1 1 Description Enables or disables the IP phone to play a key tone when a user presses any key on your phone keypad 0 Disabled 1 Enabled If it is set to 1 Enabled the IP phone will play a key tone when a user presses any key on your phone keypad Web User Interface Features Audio Key Tone Phone User Interface None features send_key_tone 0 or 1 1 Description Enable...

Page 117: ...User Interface None To configure a send key via web user interface 1 Click on Features General Information 2 Select the desired value from the pull down list of Key As Send 3 Click Confirm to accept the change To configure send pound key via web user interface 1 Click on Features General Information ...

Page 118: ... and key tone via web user interface 1 Click on Features Audio 2 Select the desired value from the pull down list of Key Tone 3 Select the desired value from the pull down list of Send Sound 4 Click Confirm to accept the change To configure a send key via phone user interface 1 Press Menu Features or as send 2 Press or or the Switch soft key to select or from the or as send field or select Disable...

Page 119: ... 123 1234 12345 12abc etc x The x can be used as a placeholder for any character Example 12x would match 121 122 123 12a etc The dash can be used to match a range of characters within the brackets Example 5 7 would match the number 5 6 or 7 The comma can be used as a separator within the bracket Example 2 5 8 would match the number 2 5 or 8 The square bracket can be used as a placeholder for a sin...

Page 120: ...Procedure Dial now rule can be created using the configuration files or locally Configuration File y0000000000xx cfg Create the dial now rule for the IP phone Parameters dialplan dialnow rule X Configure the delay time for the dial now rule Parameters phone_setting dialnow_delay Local Web User Interface Create the dial now rule for the IP phone Navigate to http phoneIPAddress servlet p settings di...

Page 121: ...23 Web User Interface Settings Dial Plan Dial now Rule Phone User Interface None phone_setting dialnow_delay Integer from 1 to 14 1 Description Configures the delay time in seconds for the dial now rule When entered numbers match the predefined dial now rule the IP phone will automatically dial out the entered number after the designated delay time Web User Interface Features General Information T...

Page 122: ...Information 2 Enter the desired time within 1 14 in seconds in the Time Out for Dial Now Rule field 3 Click Confirm to accept the change Call log contains call information such as remote party identification time and date and call duration It can be used to redial previous outgoing calls return incoming calls and save contact information from call log lists to the contact directory IP phones maint...

Page 123: ...gure call log feature Navigate to http phoneIPAddress servlet p features general q load Phone User Interface Configure call log feature Details of the Configuration Parameter Parameter Permitted Values Default features save_call_history 0 or 1 1 Description Enables or disables the IP phone to save the call log 0 Disabled 1 Enabled If it is set to 0 Disabled the IP phone cannot log the missed calls...

Page 124: ...og allows the IP phone to display the number of missed calls with an indicator icon on the idle screen and to log missed calls in the Missed Calls list when the IP phone misses calls It is configurable on a per line basis Once the user accesses the Missed Calls list the prompt message and indicator icon on the idle screen disappear Procedure Missed call log can be configured using the configuratio...

Page 125: ...P phone displays a message on the idle screen and logs the missed call in the Missed Calls list when missed calls Note It works only if the value of the parameter features save_call_history is set to 1 Enabled Web User Interface Account Basic Missed Call Log Phone User Interface None To configure missed call log via web user interface 1 Click on Account Basic 2 Select the desired value from the pu...

Page 126: ...ture Navigate to http phoneIPAddress servlet p features general q load Details of the Configuration Parameter Parameter Permitted Values Default super_search delay_time Integer from 1 to 10 3 Description Configures the delay time in seconds for the IP phone to automatically display the search results on the dialing screen Example super_search delay_time 3 Web User Interface Features General Inform...

Page 127: ... time Procedure Live dialpad can be configured using the configuration files or locally Configuration File y0000000000xx cfg Configure live dialpad Parameters phone_setting predial_autodial phone_setting inter_digit_time Local Web User Interface Configure live dialpad Navigate to http phoneIPAddress servlet p settings preference q load Details of Configuration Parameters Parameters Permitted Value...

Page 128: ...eference Live Dialpad Phone User Interface None phone_setting inter_digit_time Integer from 1 to 14 8 Description Configures the delay time in seconds for the IP phone to automatically dial out the entered digits without pressing a send key Note It works only if the value of the parameter phone_setting predial_autodial is set to 1 Enabled Web User Interface Settings Preference Inter Digit Time 1 1...

Page 129: ...sation Call waiting tone works only if call waiting is enabled The call waiting on code and call waiting off code configured on IP phones are used to activate deactivate the server side call waiting feature They may vary on different servers Procedure Call waiting and call waiting tone can be configured using the configuration files or locally Configuration File y0000000000xx cfg Configure call wa...

Page 130: ...f it is set to 1 Enabled the LCD screen will present a new incoming call while during a call Web User Interface Features General Information Call Waiting Phone User Interface Menu Features Call Waiting Call Waiting call_waiting tone 0 or 1 1 Description Enables or disables the IP phone to play the call waiting tone when the IP phone receives an incoming call during a call 0 Disabled 1 Enabled If i...

Page 131: ...erface 1 Click on Features Audio 2 Select the desired value from the pull down list of Call Waiting Tone 3 Click Confirm to accept the change To configure call waiting and call waiting tone via phone user interface 1 Press Menu Features Call Waiting 2 Press or or the Switch soft key to select the desired value from the Call Waiting field 3 Press or or the Switch soft key to select the desired valu...

Page 132: ...ddress servlet p features audio q load Details of Configuration Parameters Parameters Permitted Values Default features redial_tone Integer within 6 digits Blank Description Configures the IP phone to continue to play the dial tone after inputting the preset numbers on the pre dialing screen Example features redial_tone 125 The IP phone will continue to play the dial tone after inputting 125 on th...

Page 133: ...advance You can press the HEADSET key to activate the headset mode Procedure Ringer device for headset can be configured using the configuration files or locally Configuration File y0000000000xx cfg Configure the ringer device for the IP phone Parameters features ringer_device is_use_he adset Local Web User Interface Configure the ringer device for the IP phone Navigate to http phoneIPAddress serv...

Page 134: ...Interface Features Audio Ringer Device for Headset Phone User Interface None To configure ringer device for headset via web user interface 1 Click on Features Audio 2 Select the desired value from the pull down list of Ringer Device for Headset 3 Click Confirm to accept the change Auto answer allows IP phones to automatically answer an incoming call IP phones will not automatically answer the inco...

Page 135: ...ount basic q load acc 0 Specify a period of delay time for auto answer Navigate to http phoneIPAddress servlet p features general q load Details of Configuration Parameters Parameters Permitted Values Default account 1 auto_answer 0 or 1 0 Description Enables or disables auto answer feature for the account 0 Disabled 1 Enabled If it is set to 1 Enabled the IP phone can automatically answer an inco...

Page 136: ... IP phone automatically answers an incoming call Web User Interface Features General Information Auto Answer Delay 1 4s Phone User Interface None To configure auto answer via web user interface 1 Click on Account Basic 2 Select the desired value from the pull down list of Auto Answer 3 Click Confirm to accept the change To configure a period of delay time for auto answer via web user interface 1 C...

Page 137: ...nt status of the phone is Available if the always online feature is enabled then the phone status will stay Available until you manually change it Procedure Always on line can be configured using the configuration files or locally Configuration File y0000000000xx cfg Configure always on line Parameter features always_online enable Local Web User Interface Configure always on line Navigate to http ...

Page 138: ...d to available after the emergency call even if the value of this parameter is set to 1 Enabled Web User Interface Account Basic Always On Line Phone User Interface Menu Settings Basic Settings Always Online To configure always on line via web user interface 1 Click on Account Basic 2 Select the desired value from the pull down list of Always On Line 3 Click Confirm to accept the change To configu...

Page 139: ...igure allow mute feature Parameters features allow_mute Local Web User Interface Configure allow mute feature Navigate to http phoneIPAddress servlet p features general q load Details of Configuration Parameters Parameters Permitted Values Default features allow_mute 0 or 1 1 Description Enables or disables the IP phone to mute an active call 0 Disabled 1 Enabled Web User Interface Features Genera...

Page 140: ...eases a call Busy tone delay can define a period of time during which the busy tone is audible Procedure Busy tone delay can be configured using the configuration files or locally Configuration File y0000000000xx cfg Configure busy tone delay Parameter features busy_tone_delay Local Web User Interface Configure busy tone delay Navigate to http phoneIPAddress servlet p features general q load Detai...

Page 141: ...Features General Information Busy Tone Delay Seconds Phone User Interface None To configure busy tone delay via web user interface 1 Click on Features General Information 2 Select the desired value from the pull down list of Busy Tone Delay Seconds 3 Click Confirm to accept the change Return code when refuse defines the return code and reason of the SIP response message for the refused call The ca...

Page 142: ...eral q load Details of the Configuration Parameter Parameter Permitted Values Default features normal_refuse_code 404 480 486 or 603 603 Description Configures a return code and reason of SIP response messages when the IP phone rejects an incoming call A specific reason is displayed on the caller s phone LCD screen 404 Not Found 480 Temporarily Not Available 486 Busy Here 603 Decline If it is set ...

Page 143: ...arly media stream for the caller 180 ring workaround defines whether to deal with the 180 message received after the 183 message When the caller receives a 183 message it suppresses any local ringback tone and begins to play the media received 180 ring workaround allows IP phones to resume and play the local ringback tone upon a subsequent 180 message received Procedure 180 ring workaround can be ...

Page 144: ...gback tone upon a subsequent 180 message received Web User Interface Features General Information 180 Ring Workaround Phone User Interface None To configure 180 ring workaround via web user interface 1 Click on Features General Information 2 Select the desired value from the pull down list of 180 Ring Workaround 3 Click Confirm to accept the change Call hold provides a service of placing an active...

Page 145: ...es or locally Configuration File y0000000000xx cfg Configure the call hold tone and call hold tone delay Parameters features play_hold_tone enable features play_hold_tone delay Local Web User Interface Configure the call hold tone and call hold tone delay Navigate to http phoneIPAddress servlet p features general q load Details of Configuration Parameters Parameters Permitted Values Default featur...

Page 146: ...s only if the value of the parameter features play_hold_tone enable is set to 1 Enabled Web User Interface Features General Information Play Hold Tone Delay Phone User Interface None To configure call hold tone and call hold tone delay via web user interface 1 Click on Features General Information 2 Select the desired value from the pull down list of Play Hold Tone 3 Enter the desired time in the ...

Page 147: ...haracters Blank Description Configures the characters the IP phone filters when dialing If the dialed number contains configured characters the IP phone will automatically filter these characters when dialing Example features call_num_filter If you dial 1010 the IP phone will filter the character and dial out 1010 Note If it is left blank the IP phone will not automatically filter any characters w...

Page 148: ...P phone s keypad during a call Each key pressed on the IP phone generates one sinusoidal tone of two frequencies One is generated from a high frequency group and the other from a low frequency group The DTMF keypad is laid out in a 4 4 matrix with each row representing a low frequency and each column representing a high frequency Pressing a digit key such as 1 will generate a sinusoidal tone for e...

Page 149: ...hone to send the end RTP Event packet Parameter features dtmf repetition Local Web User Interface Configure the number of times for the IP phone to send the end RTP Event packet Navigate to http phoneIPAddress servlet p features general q load Details of Configuration Parameters Parameters Permitted Values Default features dtmf repetition 1 2 or 3 3 Description Configures the repetition times for ...

Page 150: ... the LCD screen Suppress DTMF display delay defines whether to display the DTMF digits for a short period of time before displaying as Procedure Configuration changes can be performed using the configuration files or locally Configuration File y0000000000xx cfg Configure suppress DTMF display and suppress DTMF display delay Parameters features dtmf hide features dtmf hide_delay Local Web User Inte...

Page 151: ...r Interface None features dtmf hide_delay 0 or 1 0 Description Enables or disables the IP phone to display the DTMF digits for a short period before displaying asterisks during an active call 0 Disabled 1 Enabled Note It works only if the value of the parameter features dtmf hide is set to 1 Enabled Web User Interface Features General Information Suppress DTMF Display Delay Phone User Interface No...

Page 152: ...MF digits to the server for transferring calls to third parties Procedure Configuration changes can be performed using the configuration files or locally Configuration File y0000000000xx cfg Configure transfer via DTMF Parameters features dtmf replace_tran features dtmf transfer Local Web User Interface Configure transfer via DTMF Navigate to http phoneIPAddress servl et p features general q loa d...

Page 153: ...en pressing the Tran Transfer soft key or TRAN TRANSFER key during a call Web User Interface Features General Information DTMF Replace Tran Phone User Interface None features dtmf transfer String within 32 characters Blank Description Configures the DTMF digits to be transmitted to perform call transfer Valid values are 0 9 and A D Example features dtmf transfer 123 Note It works only if the value...

Page 154: ...TMF tone allows IP phones to play a local DTMF tone during an active call Procedure Configuration changes can be performed using the configuration files or locally Configuration File y0000000000xx cfg Configure play local DTMF tone Parameters features play_local_dtmf_tone_ enable Local Web User Interface Configure play local DTMF tone Navigate to http phoneIPAddress servl et p features general q l...

Page 155: ... Tone Phone User Interface None To configure play local DTMF tone via web user interface 1 Click on Features General Information 2 Select the desired value from the pull down list of Play Local DTMF Tone 3 Click Confirm to accept the change Generally users have to enter a PIN before they access the voice mail box If voice mail without PIN feature is enabled users can access voice mail box without ...

Page 156: ... Configure voice mail without PIN Navigate to http phoneIPAddress servlet p f eatures general q load Details of Configuration Parameters Parameters Permitted Values Default account 1 voice_mail skin_pin enable 0 or 1 0 Description Enables or disables the IP phone to access voice mail box without entering PIN 0 Disabled 1 Enabled Web User Interface Features General Information Voice Mail without PI...

Page 157: ...ly by pinpointing a caller s location E911 location tip feature allows the idle screen to display the notification Location is not set when the location of the phone is not set Procedure E911 location tip can be configured using the configuration files or locally Configuration File y0000000000xx cfg Configure E911 location tip Parameters features location_info_indicator enable Local Web User Inter...

Page 158: ...notification Location is not set when the location of the phone is not set 0 Disabled 1 Enabled Web User Interface Features General Information E911 Location Tip Phone User Interface None To configure E911 location tip via web user interface 1 Click on Features General Information 2 Select the desired value from the pull down list of E911 Location Tip 3 Click Confirm to accept the change When the ...

Page 159: ...Interface Configure boss admin light Navigate to http phoneIPAddress servlet p fe atures general q load Details of Configuration Parameters Parameters Permitted Values Default features boss_admin_idle_light enable 0 or 1 1 Description Enables or disables boss s line key second line key on the delegate s phone LED to be turned on automatically 0 Disabled line key indicator LED is off 1 Enabled line...

Page 160: ...d resume audio calls with your Lync contacts on your phone and the Lync client on your PC PAD simultaneously BToE as audio device Microsoft Lync 2013 supports audio and video in the virtual desktop infrastructure VDI environment Users can connect to the virtual machine log into the virtual machine running Microsoft Lync 2013 and participate in real time audio and video communication BToE as audio ...

Page 161: ...arameters Permitted Values Default sip btoe enable 0 or 1 1 Description Enables or disables the BToE Better Together over Ethernet feature 0 Disabled 1 Enabled Note If you change this parameter the IP phone will reboot to make the change take effect Web User Interface None Phone User Interface None sip btoe as_audio_dev enable 0 or 1 0 Description Enables or disables the IP phone to be used as an ...

Page 162: ...t to use BToE in the VDI environment Web User Interface Features Audio BToE as Audio Device VDI support Phone User Interface None To configure BToE as audio device via web user interface 1 Click on Feature Audio 2 Select the desired value from the pull down list of BToE as Audio Device VDI support 3 Click Confirm to accept the change ...

Page 163: ...hone will tag all packets from these ports with the VLAN ID The switch receives and forwards the tagged packets to the corresponding VLAN according to the VLAN ID in the tag as described in IEEE Std 802 3 VLAN on IP phones allows simultaneous access for a regular PC This feature allows a PC to be daisy chained to an IP phone and the connection for both PC and IP phone to be trunked through the sam...

Page 164: ... This allows the IP phones to be plugged into any switch obtain their VLAN IDs and then start communications with the call control Procedure LLDP can be configured using the configuration files or locally Configuration File y0000000000xx cfg Configure LLDP Parameters network lldp enable network lldp packet_interval Local Web User Interface Configure LLDP Navigate to http phoneIPAddress servle t p ...

Page 165: ...nced LLDP Packet Interval 1 3600s Phone User Interface None To configure LLDP via web user interface 1 Click on Network Advanced 2 In the LLDP block select the desired value from the pull down list of Active 3 Enter the desired time interval in the Packet Interval 1 3600s field 4 Click Confirm to accept the change A dialog box pops up to prompt that settings will take effect after a reboot 5 Click...

Page 166: ...ion files or locally Configuration File y0000000000xx cfg Configure CDP Parameters network cdp enable network cdp packet_interval Local Web User Interface Configure CDP Navigate to http phoneIPAddress servle t p network adv q load Details of Configuration Parameters Parameters Permitted Values Default network cdp enable 0 or 1 1 Description Enables or disables the CDP Cisco Discovery Protocol feat...

Page 167: ... CDP block select the desired value from the pull down list of Active 3 Enter the desired time interval in the Packet Interval 1 3600s field 4 Click Confirm to accept the change A dialog box pops up to prompt that settings will take effect after a reboot 5 Click OK to reboot the phone VLAN is disabled on IP phones by default You can configure VLAN for the Internet port and PC port manually Before ...

Page 168: ...AN for the Internet port and PC port manually Details of Configuration Parameters Parameters Permitted Values Default network vlan internet_port_enable 0 or 1 0 Description Enables or disables VLAN for the Internet WAN port 0 Disabled 1 Enabled Note If you change this parameter the IP phone will reboot to make the change take effect Web User Interface Network Advanced VLAN WAN Port Active Phone Us...

Page 169: ...l reboot to make the change take effect Web User Interface Network Advanced VLAN WAN Port Priority Phone User Interface Menu Settings Advanced Settings default password admin Network VLAN WAN Port Priority network vlan pc_port_enable 0 or 1 0 Description Enables or disables VLAN for the PC LAN port 0 Disabled 1 Enabled Note If you change this parameter the IP phone will reboot to make the change t...

Page 170: ...iority Integer from 0 to 7 0 Description Configures VLAN priority for the PC LAN port 7 is the highest priority 0 is the lowest priority Note If you change this parameter the IP phone will reboot to make the change take effect Web User Interface Network Advanced VLAN PC Port Priority Phone User Interface Menu Settings Advanced Settings default password admin Network VLAN PC Port Priority To config...

Page 171: ...t the phone To configure VLAN for PC port via web user interface 1 Click on Network Advanced 2 In the VLAN block select the desired value from the pull down list of PC Port Active 3 Enter the VLAN ID in the VID 1 4094 field 4 Select the desired value 0 7 from the pull down list of Priority 5 Click Confirm to accept the change A dialog box pops up to prompt that the settings will take effect after ...

Page 172: ...upport VLAN discovery via DHCP When the VLAN Discovery method is set to DHCP the IP phone will examine DHCP option for a valid VLAN ID The predefined option 132 is used to supply the VLAN ID by default You can customize the DHCP option used to request the VLAN ID Procedure DHCP VLAN can be configured using the configuration files or locally Configuration File y0000000000xx cfg Configure DHCP VLAN ...

Page 173: ... DHCP option from which the IP phone will obtain the VLAN settings You can configure at most five DHCP options and separate them by commas Note If you change this parameter the IP phone will reboot to make the change take effect Web User Interface Network Advanced VLAN DHCP VLAN Option Phone User Interface None To configure DHCP VLAN discovery via web user interface 1 Click on Network Advanced 2 I...

Page 174: ...can be sent between the phones in RTCP XR packets RTCP XR mechanism for voice quality monitoring is supported by Yealink IP phones The RTCP XR mechanism complaint with RFC 3611 RTP Control Extended Reports RTCP XR provides the metrics contained in RTCP XR packets for monitoring the quality of calls These metrics include network packet loss delay metrics analog metrics and voice quality metrics Thi...

Page 175: ...oS guarantees are important for applications that require fixed bit rate and are delay sensitive when the network capacity is insufficient There are four major QoS factors to be considered when configuring a modern QoS implementation bandwidth delay jitter and loss QoS provides better network service through the following features Supporting dedicated bandwidth Improving loss characteristics Avoid...

Page 176: ...Allocations can be given different forwarding assurances Default PHB specifies that a packet marked with a DSCP value of 000000 gets the traditional best effort service from a DS compliant node VoIP is extremely bandwidth and delay sensitive QoS is a major issue in VoIP implementations regarding how to guarantee that packet traffic not be delayed or dropped due to interference from other lower pri...

Page 177: ...voice packets The default DSCP value for RTP packets is 46 Expedited Forwarding Note If you change this parameter the IP phone will reboot to make the change take effect Web User Interface Network Advanced Voice QoS Voice QoS 0 63 Phone User Interface None network qos signaltos Integer from 0 to 63 26 Description Configures the DSCP Differentiated Services Code Point for SIP packets The default DS...

Page 178: ...work management systems to monitor network attached devices for conditions that warrant administrative attention SNMP exposes management data in the form of variables on the managed systems which describe the system configuration and can then be queried by the managing applications The variables accessible via SNMP are organized in hierarchies which are described by Management Information Bases MI...

Page 179: ...tialized YEALINK MIB 1 3 6 1 2 1 37459 2 1 5 0 The firmware version of the IP phone YEALINK MIB 1 3 6 1 2 1 37459 2 1 6 0 The hardware version of the IP phone YEALINK MIB 1 3 6 1 2 1 37459 2 1 7 0 The IP phone s model YEALINK MIB 1 3 6 1 2 1 37459 2 1 8 0 The MAC address of the IP phone YEALINK MIB 1 3 6 1 2 1 37459 2 1 9 0 The IP address of the IP phone YEALINK MIB 1 3 6 1 2 1 37459 2 1 10 0 The ...

Page 180: ...nagement Protocol feature on the IP phone 0 Disabled 1 Enabled Note If you change this parameter the IP phone will reboot to make the change take effect It is only applicable to SIP T48G IP phones Web User Interface Network Advanced SNMP Active Phone User Interface None network snmp port Integer from 1 to 65535 161 Description Configures the port used for SNMP Simple Network Management Protocol co...

Page 181: ...IP address If the value is left blank the IP phone cannot receive or handle any GET request Note If you change this parameter the IP phone will reboot to make the change take effect It is only applicable to SIP T48G IP phones Web User Interface Network Advanced SNMP Trusted Address Phone User Interface None To configure SNMP via web user interface 1 Click on Network Advanced 2 In the SNMP block se...

Page 182: ...t for the current IPv4 protocol IPv6 is developed by the Internet Engineering Task Force IETF to deal with the long anticipated problem of IPv4 address exhaustion IPv6 uses a 128 bit address consisting of eight groups of four hexadecimal digits separated by colons VoIP network based on IPv6 can ensure QoS a set of service requirements to deliver performance guarantee while transporting traffic ove...

Page 183: ...s IPv6 network addresses to IPv6 nodes It offers the capability of automatic allocation of reusable network addresses and additional configuration flexibility This protocol is a stateful counterpart to IPv6 Stateless Address Autoconfiguration and can be used separately or in addition to the stateless autoconfiguration to obtain configuration parameters Note Procedure IPv6 can be configured using t...

Page 184: ...ils of Configuration Parameters Parameters Permitted Values Default network ip_address_mode 0 1 or 2 0 Description Configures the IP address mode 0 IPv4 1 IPv6 2 IPv4 IPv6 Note If you change this parameter the IP phone will reboot to make the change take effect Web User Interface Network Basic Internet Port Mode IPv4 IPv6 Phone User Interface Menu Settings Advanced Settings default password admin ...

Page 185: ...y if the value of the parameter network ipv6_internet_port type is set to 0 DHCP If you change this parameter the IP phone will reboot to make the change take effect Web User Interface Network Basic IPv6 Config IPv6 Static DNS Phone User Interface Menu Settings Advanced Settings default password admin Network DNS Server Static DNS network ipv6_internet_port ip IPv6 address Blank Description Config...

Page 186: ... 0 128 Phone User Interface Menu Settings Advanced Settings default password admin Network WAN Port IPv6 Static IPv6 Client IPv6 Prefix network ipv6_internet_port gateway IPv6 address Blank Description Configures the IPv6 default gateway Example network ipv6_internet_port gateway 3036 1 1 c3c7 c11c 5447 23a6 255 Note It works only if the value of the parameter network ip_address_mode is set to 1 I...

Page 187: ...rk ipv6_secondary_dns IPv6 address Blank Description Configures the secondary IPv6 DNS server Example network ipv6_secondary_dns 2026 1234 1 1 c3c7 c11c 5447 23a6 Note It works only if the value of the parameter network ip_address_mode is set to 1 IPv6 or 2 IPv4 IPv6 In DHCP environment you also need to make sure the value of the parameter network ipv6_static_dns_enable is set to 1 On If you chang...

Page 188: ...llowed to configure this parameter for SIP T22 P IP phones Web User Interface Network Advanced ICMPv6 Status Active Phone User Interface None To configure IPv6 address assignment method via web user interface 1 Click on Network Basic 2 Select the desired address mode IPv6 or IPv4 IPv6 from the pull down list of Mode IPv4 IPv6 3 In the IPv6 Config block mark the DHCP or the Static IP Address radio ...

Page 189: ...atic DNS address in the corresponding fields 4 Click Confirm to accept the change A dialog box pops up to prompt that the settings will take effect after a reboot 5 Click OK to reboot the phone To configure SLAAC feature via web user interface only applicable to SIP T48G 1 Click on Network Advanced ...

Page 190: ...d IPv6 address assignment method If you select the Static IPv6 Client configure the IPv6 address and other network parameters in the corresponding fields 5 Press the Save soft key to accept the change The IP phone reboots automatically to make settings effective after a period of time To configure static DNS when DHCP is used via phone user interface 1 Press Menu Settings Advanced Settings default...

Page 191: ...m ring tones you need to upload the custom ring tones to the IP phone in advance The ring tone format must meet the following Phone Model Format Single File Size Total File Size SIP T48G wav 8MB 20MB SIP TT22 P wav 100KB 100KB Note Procedure Ring tones can be configured using the configuration files or locally Configuration File y0000000000xx cfg Configure a ring tone for the IP phone Parameter ph...

Page 192: ... phoneIPAddress ser vlet p settings preference q load Configure a ring tone on a per line basis Navigate to http phoneIPAddress ser vlet p account basic q loa d acc 0 Phone User Interface Configure the ring tone for the IP phone Details of the Configuration Parameter Parameters Permitted Values Default ringtone url URL within 511 characters Blank Description Configures the access URL of the custom...

Page 193: ...av Ring6 wav Ring7 wav Ring8 wav or custom ring tone name e g Customring wav Note Ring 5 8 are only applicable to SIP T48G IP phones Web User Interface Settings Preference Ring Type Phone User Interface Menu Settings Basic Settings Ring Tones ringtone delete http localhost all Blank Description Deletes all custom ring tone files Example ringtone delete http localhost all Web User Interface None Ph...

Page 194: ...wav Ring8 wav or custom ring tone name e g Customring wav Note Ring 5 8 are only applicable to SIP T48G IP phones Web User Interface Account Basic Ring Type Phone User Interface None To upload a custom ring tone via web user interface 1 Click on Settings Preference 2 In the Upload Ringtone field click Browse to locate a ring tone file the file format must be wav from your local system 3 Click Uplo...

Page 195: ... select a ring tone for the phone via phone user interface 1 Press Menu Settings Basic Settings Ring Tones 2 Press or to select the desired ring tone 3 Press the Save soft key to accept the change or the Back soft key to cancel When receiving a message the IP phone will play a warning tone You can customize tones or select specialized tone sets vary from country to country to indicate different co...

Page 196: ...ndia Italy Japan Mexico New Zealand Netherlands Norway Portugal Spain Switzerland Sweden Russia United States Configured tones can be heard on IP phones for the following conditions Condition Description Dial When in the pre dialing interface Ring Back Ring back tone Busy When the callee is busy Congestion When the network is congested Call Waiting Call waiting tone Dial Recall When receiving a ca...

Page 197: ...ne callwaiting voice tone dialrecall voice tone info voice tone stutter voice tone autoanswer Local Web User Interface Configure the tones for the IP phone Navigate to http phoneIPAddress servl et p settings tones q load Details of Configuration Parameters Parameters Permitted Values Default voice tone country Refer to the following content Custom Description Configures the country tone for the IP...

Page 198: ...quencies Duration the duration in milliseconds of the dial tone ranges from 0 to 30000ms You can configure at most eight different tones for one condition and separate them by commas e g 250 200 0 1000 200 300 500 600 700 800 1000 2000 If you want the IP phone to play tones once add an exclamation mark before tones e g 250 200 0 1000 200 300 500 600 700 800 1000 2000 Note It works only if the valu...

Page 199: ...m Web User Interface Settings Tones Busy Phone User Interface None voice tone congestion String Blank Description Customizes the tone when the network is congested The value format is Freq Duration For more information on the value format refer to the parameter voice tone dial Note It works only if the value of the parameter voice tone country is set to Custom Web User Interface Settings Tones Con...

Page 200: ...ly if the value of the parameter voice tone country is set to Custom Web User Interface Settings Tones Dial Recall Phone User Interface None voice tone info String Blank Description Customizes the info tone The phone will play the info tone with the special information for example the number you are calling is not in service The value format is Freq Duration For more information on the value forma...

Page 201: ...String Blank Description Customizes the warning tone for auto answer The value format is Freq Duration For more information on the value format refer to the parameter voice tone dial Note It works only if the value of the parameter voice tone country is set to Custom Web User Interface Settings Tones Auto Answer Phone User Interface None To configure tones via web user interface 1 Click on Setting...

Page 202: ...b User Interface Configure headset prior Navigate to http phoneIPAddress servlet p features gener al q load Details of the Configuration Parameter Parameter Permitted Values Default features headset_prior 0 or 1 0 Description Enables or disables headset prior feature You need to press the HEADSET key to activate the headset mode in advance 0 Disabled 1 Enabled If it is set to 1 Enabled the headset...

Page 203: ...sets to the headset and handset jacks respectively Once the IP phone connects to a call the user with the headset connected to the headset jack has full duplex capabilities while the user with the headset connected to the handset jack is only able to listen Procedure Dual headset can be configured using the configuration files or locally Configuration File y0000000000xx cfg Configure dual headset ...

Page 204: ... headsets on one phone When the IP phone joins in a call the users with the headset connected to the headset jack have a full duplex conversation while the users with the headset connected to the handset jack are only allowed to listen to Web User Interface Features General Information Dual Headset Phone User Interface None To configure dual headset via web user interface 1 Click on Features Gener...

Page 205: ...PCMU PCMA G729 G726 16 G726 24 G726 32 G726 40 iLBC G723_53 G723_63 G722 PCMU PCMA G729 The following table summarizes the supported audio codecs on IP phones Codec Algorithm Reference Bit Rate Sample Rate G722 G 722 RFC 3551 64 Kbps 16 Ksps PCMU G 711 u law RFC 3551 64 Kbps 8 Ksps PCMA G 711 a law RFC 3551 64 Kbps 8 Ksps G729 G 729 RFC 3551 8 Kbps 8 Ksps G726 16 G 726 RFC 3551 16 Kbps 8 Ksps G726...

Page 206: ...face 0 4 G723_63 Configuration Files Web User Interface 0 4 G726 16 Configuration Files Web User Interface 0 103 G726 24 Configuration Files Web User Interface 0 104 G726 32 Configuration Files Web User Interface 0 102 G726 40 Configuration Files Web User Interface 0 105 iLBC Configuration Files Web User Interface 0 106 GSM Configuration Files Web User Interface 0 97 Procedure Configuration change...

Page 207: ...to the following content Description Enables or disables the specified codec for the account 0 Disabled 1 Enabled Default When Y 1 the default value is 1 When Y 2 the default value is 1 When Y 3 the default value is 0 When Y 4 the default value is 0 When Y 5 the default value is 1 When Y 6 the default value is 1 When Y 7 the default value is 0 When Y 8 the default value is 0 When Y 9 the default v...

Page 208: ...default value is PCMA When Y 3 the default value is G723_53 When Y 4 the default value is G723_63 When Y 5 the default value is G729 When Y 6 the default value is G722 When Y 7 the default value is iLBC When Y 8 the default value is G726 16 When Y 9 the default value is G726 24 When Y 10 the default value is G726 32 When Y 11 the default value is G726 40 When Y 12 the default value is GSM only app...

Page 209: ...1 priority 2 Web User Interface Account Codec Phone User Interface None account 1 codec Y rtpmap Y ranges from 1 to 12 Integer from 0 to 127 Refer to the following content Description Configures the rtpmap of the audio codec for the account When Y 1 the default value is 0 When Y 2 the default value is 8 When Y 3 the default value is 4 When Y 4 the default value is 4 When Y 5 the default value is 1...

Page 210: ...codecs on a per line basis via web user interface 1 Click on Account Codec 2 Select the desired codec from the Disable Codecs column and then click The selected codec appears in the Enable Codecs column 3 Repeat the step 4 to add more codecs to the Enable Codecs column 4 To remove the codec from the Enable Codecs column select the desired codec and then click 5 To adjust the priority of codecs sel...

Page 211: ...o when the user uses the handset Note Procedure AEC can be configured using the configuration files or locally Configuration File y0000000000xx cfg Configure AEC Parameter voice echo_cancellation Local Web User Interface Configure AEC Navigate to http phoneIPAddress servlet p settings voice q load Details of the Configuration Parameter Parameter Permitted Values Default voice echo_cancellation 0 o...

Page 212: ...unication in noisy environments Automatic Gain Control AGC is applicable to hands free operation and is used to keep audio output at nearly a constant level by adjusting the gain of signals in certain circumstances This increases the effective user phone radius and helps with the intelligibility of talkers Voice Activity Detection VAD is used in speech processing to detect the presence or absence ...

Page 213: ...fg Configure VAD Parameter voice vad Local Web User Interface Configure VAD Navigate to http phoneIPAddress servlet p settings voice q load Details of the Configuration Parameter Parameter Permitted Values Default voice vad 0 or 1 0 Description Enables or disables VAD Voice Activity Detection feature on the IP phone 0 Disabled 1 Enabled Web User Interface Settings Voice Echo Cancellation VAD Phone...

Page 214: ...es the illusion of a constant transmission stream so that background sound is consistent throughout the call and the listener does not think the line has released The purpose of VAD and CNG is to maintain an acceptable perceived QoS while simultaneously keeping transmission costs and bandwidth usage as low as possible Note For example A is talking with B A VAD 1 CNG 1 B VAD 0 CNG 1 If A mutes the ...

Page 215: ... Navigate to http phoneIPAddress servlet p settings voice q load Details of the Configuration Parameter Parameter Permitted Values Default voice cng 0 or 1 1 Description Enables or disables CNG Comfortable Noise Generation feature on the IP phone 0 Disabled 1 Enabled Web User Interface Settings Voice Echo Cancellation CNG Phone User Interface None To configure CNG via web user interface 1 Click on...

Page 216: ...ences a clear connection with very little sound distortion IP phones support two types of jitter buffers fixed and adaptive A fixed jitter buffer adds the fixed delay to voice packets You can configure the delay time for the static jitter buffer on IP phones An adaptive jitter buffer is capable of adapting the changes in the network s delay The range of the delay time for the dynamic jitter buffer...

Page 217: ...None voice jib min Integer from 0 to 400 60 Description Configures the minimum delay time in milliseconds of jitter buffer Note It works only if the value of the parameter voice jib adaptive is set to 1 Adaptive Web User Interface Settings Voice JITTER BUFFER Min Delay Phone User Interface None voice jib max Integer from 0 to 400 240 Description Configures the maximum delay time in milliseconds of...

Page 218: ...erface Settings Voice JITTER BUFFER Normal Phone User Interface None To configure Jitter Buffer via web user interface 1 Click on Settings Voice 2 Mark the desired radio box in the Type field 3 Enter the minimum delay time for adaptive jitter buffer in the Min Delay field The valid value ranges from 0 to 300 4 Enter the maximum delay time for adaptive jitter buffer in the Max Delay field The valid...

Page 219: ...he web user interface you need to enter the user name and password to access various menu options A user or an administrator can change the user password The default user password is user For security reasons the user or administrator should change the default user password as soon as possible Procedure User password can be changed using the configuration files or locally Configuration File y00000...

Page 220: ...ent user name is user to password 123 Note IP phones support ASCII characters 32 126 0x20 0x7E in passwords You can set the password to be empty via web user interface only Web User Interface Security Password Phone User Interface None To change the user password via web user interface 1 Click on Security Password 2 Select user from the pull down list of User Type 3 Enter new password in the New P...

Page 221: ...al Web User Interface Change the administrator password Navigate to http phoneIPAddress servlet p security q load Phone User Interface Change the administrator password Details of the Configuration Parameter Parameter Permitted Values Default security user_password String within 32 characters admin Description Configures the password of the administrator for phone s web user interface access The I...

Page 222: ...ord via phone user interface 1 Press Menu Settings Advanced Settings default password admin Set Password 2 Enter the current administrator password in the Current PWD field 3 Enter new password in the New PWD field and Confirm PWD field Valid characters are ASCII characters 32 126 0x20 0x7E 4 Press the Save soft key to accept the change Auto logout time allows IP phones to automatically log out if...

Page 223: ...nutes for web access authentication Example features relog_offtime 5 If you log into the web user interface and leave it for 5 minutes it will automatically log out Note If you change this parameter the IP phone will reboot to make the change take effect Web User Interface Features General Information Auto Logout Time 1 1000min Phone User Interface None To configure the auto logout time via web us...

Page 224: ... then press the OK soft key The phone will be locked automatically when it has been inactive after the specified time in seconds The time is configurable on Lync server only If you enable phone lock feature available features are limited Procedure Phone lock can be only configured locally Local Web User Interface Configure the phone lock feature Change the unlock PIN Navigate to http phoneIPAddres...

Page 225: ...ave soft key to accept the change Account lock is used to lock the account on the IP phone It can prevent your account being signed in or signed out randomly If account lock feature is enabled users are prompted for administrator password to sign in or sign out This feature is especially useful for public area telephone users Procedure Account lock can be configured using the configuration files o...

Page 226: ...t for administrator password to sign in or sign out Web User Interface Account Basic Account Lock Phone User Interface Menu Settings Advanced Settings default password admin Account Lock To configure account lock feature via web user interface 1 Click on Account Basic 2 Select the desired value from the pull down list of Account Lock 3 Click Confirm to accept the change To configure account lock f...

Page 227: ...ion the encryption key and the corresponding decryption key can be told by each other In most cases the encryption key is the same as the decryption key Asymmetric encryption For asymmetric encryption each user has a pair of cryptographic keys a public encryption key and a private decryption key The information encrypted by the public key can only be decrypted by the corresponding private key and ...

Page 228: ...nds its public key information in Server Key Exchange message and concludes its part of the negotiation with Server Hello Done message Step3 IP phone sends session key information encrypted by server s public key in the Client Key Exchange message Step4 Server sends Change Cipher Spec message to activate the negotiated options for all future messages it will send IP phones can encrypt SIP with TLS...

Page 229: ...issued by the Yealink Certificate Authority CA Only if no unique certificate exists the IP phone may send a generic certificate for authentication The IP phone can authenticate the server certificate based on the trusted certificates list The trusted certificates list and the server certificates list contain the default and custom certificates You can specify the type of certificates the IP phone ...

Page 230: ...l Web User Interface Configure trusted certificates feature Upload the trusted certificates Navigate to http phoneIPAddress servlet p trusted cert q load Configure server certificates feature Upload the server certificates Navigate to http phoneIPAddress servlet p server cert q load Details of Configuration Parameters Parameters Permitted Values Default security trust_certificates 0 or 1 1 Descrip...

Page 231: ...2 Description Configures the type of certificates in the Trusted Certificates list for the IP phone to authenticate for TLS connection 0 Default Certificates 1 Custom Certificates 2 All Certificates Note If you change this parameter the IP phone will reboot to make the change take effect Web User Interface Security Trusted Certificates CA Certificates Phone User Interface None security cn_validati...

Page 232: ...urity Server Certificates Device Certificates Phone User Interface None trusted_certificates url URL within 511 characters Blank Description Configures the access URL of the custom trusted certificate used to authenticate the connecting server Example trusted_certificates url http 192 168 1 20 tc crt Note The certificate you want to upload must be in pem crt cer or der format Web User Interface Se...

Page 233: ...rl http 192 168 1 20 ca pem Note The certificate you want to upload must be in pem or cer format Web User Interface Security Server Certificates Load server cer file Phone User Interface None server_certificates delete http localhost all Blank Description Deletes all uploaded server certificates Example server_certificates delete http localhost all Web User Interface None Phone User Interface None...

Page 234: ...ists of Only Accept Trusted Certificates Common Name Validation and CA Certificates 3 Click Confirm to accept the change To upload a trusted certificate via web user interface 1 Click on Security Trusted Certificates 2 Click Browse to select the certificate pem crt cer or der from your local system 3 Click Upload to upload the certificate ...

Page 235: ...wn list of Device Certificates 3 Click Confirm to accept the change To upload a server certificate via web user interface 1 Click on Security Server Certificates 2 Click Browse to select the certificate pem and cer from your local system 3 Click Upload to upload the certificate A dialog box pops up to prompt Success The Server Certificate has been loaded Rebooting please wait ...

Page 236: ...C cfg files respectively Note The way the IP phone processes the MAC cfg file is the same to that of the y0000000000xx cfg file Procedure to Encrypt Configuration Files To encrypt the y0000000000xx cfg file 1 Double click Config_Encrypt_Tool exe to start the application tool The screenshot of the main page is shown as below When you start the application tool a file folder named Encrypted is creat...

Page 237: ...to generate an AES key in the AES KEY field The configuration file s will be encrypted using the AES key in the AES KEY field If you mark the Auto Generate radio box the configuration file s will be encrypted using random AES key The AES keys of configuration files are different Note 5 Click Encrypt to encrypt the configuration file s 6 Click OK The target directory will be automatically opened Yo...

Page 238: ...rs Permitted Values Default auto_provision aes_key_16 com 16 characters Blank Description Configures the plaintext AES key for decrypting the Common CFG file The valid characters contain 0 9 A Z a z Example auto_provision aes_key_16 com 0123456789abcdef Web User Interface Settings Auto Provision Common AES Key Phone User Interface Menu Settings Advanced Settings Set AES Key Common auto_provision a...

Page 239: ...AES keys must be 16 characters and the supported characters contain 0 9 A Z a z 3 Press the Save soft key to accept the change IEEE 802 1X authentication is an IEEE standard for Port based Network Access Control PNAC part of the IEEE 802 1 group of networking protocols It offers an authentication mechanism for devices to connect link to a LAN or WLAN The 802 1X authentication involves three partie...

Page 240: ...entication can be configured using the configuration files or locally Configuration File y0000000000xx cfg Configure the 802 1X authentication Parameters network 802_1x mode network 802_1x identity network 802_1x md5_password network 802_1x root_cert_url network 802_1x client_cert_url Local Web User Interface Configure the 802 1X authentication Navigate to http phoneIPAddress servle t p network ad...

Page 241: ...1 2 3 or 4 If you change this parameter the IP phone will reboot to make the change take effect Web User Interface Network Advanced 802 1x Identity Phone User Interface Menu Settings Advanced Settings default password admin Network 802 1x Settings Identity network 802_1x md5_password String within 32 characters Blank Description Configures the password for 802 1x authentication Example network 802...

Page 242: ...ates Phone User Interface None network 802_1x client_cert_url URL within 511 characters Blank Description Configures the access URL of the device certificate Example network 802_1x client_cert_url http 192 168 1 10 client pem Note It works only if the value of the parameter network 802_1x mode is set to 2 EAP TLS The format of the certificate must be pem Web User Interface Network Advanced 802 1x ...

Page 243: ...e user name for authentication in the Identity field 2 Leave the MD5 Password field blank 3 In the CA Certificates field click Browse to select the desired CA certificate pem crt cer or der from your local system 4 In the Device Certificates field click Browse to select the desired client pem or cer certificate from your local system ...

Page 244: ...to upload the certificates c If you select PEAP MSCHAPv2 1 Enter the user name for authentication in the Identity field 2 Enter the password for authentication in the MD5 Password field 3 In the CA Certificates field click Browse to select the desired CA certificate pem crt cer or der from your local system ...

Page 245: ...ou select EAP TTLS EAP MSCHAPv2 1 Enter the user name for authentication in the Identity field 2 Enter the password for authentication in the MD5 Password field 3 In the CA Certificates field click Browse to select the desired CA certificate pem crt cer or der from your local system ...

Page 246: ...t key to select the desired value from the 802 1x Mode field a If you select EAP MD5 1 Enter the user name for authentication in the Identity field 2 Enter the password for authentication in the MD5 Password field b If you select EAP TLS 1 Enter the user name for authentication in the Identity field 2 Leave the MD5 Password field blank c If you select PEAP MSCHAPv2 1 Enter the user name for authen...

Page 247: ...Configuring Security Features 235 3 Click Save to accept the change The IP phone reboots automatically to make the settings effective after a period of time ...

Page 248: ...Microsoft Lync Edition Administrator s Guide for SIP T2_Series and T4_Series IP Phones 236 ...

Page 249: ...figuration File If your IP phone encounters some problems commonly the log files are needed You can export the log files to a syslog server or the local system You can also specify the severity level of the log to be reported to a log file The default system log level is 3 In the configuration files you can use the following parameters to configure system log settings syslog mode Specify the syste...

Page 250: ...f the logs to be reported to a log file Parameters syslog log_level Local Web User Interface Configure the syslog mode Configure the IP address or domain name of the syslog server where to export the log files Configure the severity level of the logs to be reported to a log file Navigate to http phoneIPAddress servlet p settings config q load Details of Configuration Parameters Parameters Permitte...

Page 251: ... parameter the IP phone will reboot to make the change take effect Web User Interface Settings Configuration Server Name Phone User Interface None syslog log_level Integer from 0 to 6 3 Description Configures the detail level of syslog information to be exported 0 system is unusable 1 action must be taken immediately 2 critical condition 3 error conditions 4 warning conditions 5 normal but signifi...

Page 252: ...s set as 6 the informational level Note To configure the phone to export the system log to a syslog server via web user interface 1 Click on Settings Configuration 2 Mark the Server radio box in the Export System Log field 3 Enter the IP address or domain name of the syslog server in the Server Name field 4 Click Confirm to accept the change Informational level may make some sensitive information ...

Page 253: ...og file to the local system via web user interface 1 Click on Settings Configuration 2 Mark the Local radio box in the Export System Log field 3 Reproduce the issue 4 Click Export to open file download window and then save the file to your local system The following figure shows a portion of a log file an account registration You can capture packet in two ways capturing the packets via web user in...

Page 254: ...ets from the HUB Connect the Internet port of the IP phone and the PC to the same HUB and then use Sniffer Ethereal or Wireshark software to capture the signal traffic Receiving data packets from PC port Connect the Internet port of the IP phone to the Internet and the PC port of the IP phone to a PC Before capturing the signal traffic make sure the data packets can be received from the WAN Intern...

Page 255: ...or disables the IP phone to span data packets received from the WAN Internet port to the PC LAN port 0 Disabled 1 Enabled If it is set to 1 Enabled all data packets from WAN port can be received by PC port Note If you change this parameter the IP phone will reboot to make the change take effect Web User Interface Network Advanced Span to PC Span to PC Port Phone User Interface None To enable span ...

Page 256: ...feature called Watch Dog which helps you monitor the IP phone status and provides the ability to get stack traces from the last time the IP phone failed If Watch Dog feature is enabled the IP phone will automatically reboot when it detects a fatal failure This feature can be configured using the configuration files or via web user interface Procedure Watch dog can be configured using the configura...

Page 257: ...is broken down Web User Interface Settings Preference Watch Dog Phone User Interface None To configure watch dog feature via web user interface 1 Click on Settings Preference 2 Select the desired value from the pull down list of Watch Dog 3 Click Confirm to accept the change Status indicators may consist of the power LED MESSAGE key LED line key indicator headset key indicator and the on screen ic...

Page 258: ...mport configuration files for a quick and easy configuration Procedure Configuration changes can be performed using the configuration files or locally Configuration File y0000000000xx cfg Specify the access URL for the custom configuration files Parameter configuration url Local Web User Interface Export or import the custom configuration files Navigate to http phoneIPAddress servlet p settings co...

Page 259: ... To import configuration file via web user interface 1 Click on Settings Configuration 2 In the Export or Import Configuration block click Browse to locate a configuration file from your local system 3 Click Import to import the configuration file This section describes solutions to common issues that may occur while using the IP phone Upon encountering a scenario not listed in this section contac...

Page 260: ... loose Ensure that the Ethernet cable is not damaged Ensure that the IP address and related network parameters are set correctly Ensure that your network switch or hub is operational Press the OK key when the IP phone is idle to check the basic information e g IP address MAC address and firmware version Do one of the following Ensure that the target firmware is not the same as the current firmware...

Page 261: ...handling retransmission mechanism buffer under run Noisy equipment such as a computer or a fan may cause voice interference Turn off any noisy equipment Line issues can also cause this problem disconnect the old line and redial the call to ensure another line may provide better connection The IP phone only uses logo file in DOB format as the DOB format file has a high compression ratio the size of...

Page 262: ...ing startup Any SIP server recognizing the message will respond with the preconfigured provisioning server address so the IP phone will be able to download the CFG files from the provisioning server PnP depends on support from a SIP server Do one of the following Ensure that the configuration is set correctly Reboot the phone Some configurations require a reboot to take effect Ensure that the conf...

Page 263: ...eset to Factory Setting field The web user interface prompts the message Do you want to reset to factory 3 Click OK to confirm the resetting The IP phone will be reset to factory sucessfully after startup Note Factory reset can restore the original password All custom settings will be overwritten after reset Ensure that the 180 ring workaround feature is disabled For more information refer to 180 ...

Page 264: ...y per RFC 2543 is used in the INVITE message when placing a call on hold Capturing packets after you disable the RFC 2543 Hold feature SDP media connection address c 0 0 0 0 per RFC 3264 is used in the INVITE message when placing a call on hold For more information on RFC 2543 hold feature refer to Call Hold on page 132 For more information on capturing packets refer to Capturing Packets on page 2...

Page 265: ...1 7 A unique digit used to identify the phone model The unique digit for each IP phone model is 35 SIP T48G 7 SIP T22 P 2 7 Firmware generation Note The larger it is the newer the firmware generation is 3 0 A fixed number 4 50 Firmware version Note With the same firmware generation the larger it is the newer the firmware version is ...

Page 266: ...Microsoft Lync Edition Administrator s Guide for SIP T2_Series and T4_Series IP Phones 254 ...

Page 267: ...em for computers services or any resource connected to the Internet or a private network EAP MD5 Extensible Authentication Protocol Message Digest Algorithm 5 only provides authentication of the EAP peer to the EAP server but not mutual authentication EAP TLS Extensible Authentication Protocol Transport Layer Security provides for mutual authentication integrity protected cipher suite negotiation ...

Page 268: ...ime Transport Protocol provides end to end service for real time data TCP Transmission Control Protocol a transport layer protocol used by applications that require guaranteed delivery UDP User Datagram Protocol a protocol offers non guaranteed datagram delivery URI Uniform Resource Identifier a compact sequence of characters that identifies an abstract or physical resource URL Uniform Resource Lo...

Page 269: ...lco GMT 6 United States Central Time GMT 5 Bahamas Nassau GMT 5 Canada Montreal Ottawa Quebec GMT 5 Cuba Havana GMT 5 United States Eastern Time GMT 4 30 Venezuela Caracas GMT 4 Canada Halifax Saint John GMT 4 Chile Santiago GMT 4 Paraguay Asuncion GMT 4 United Kingdom Bermuda Bermuda GMT 4 United Kingdom Falkland Islands GMT 4 Trinidad Tobago GMT 3 Canada New Foundland St Johns GMT 3 Denmark Gree...

Page 270: ...taly Rome GMT 1 Luxembourg Luxembourg GMT 1 Macedonia Skopje GMT 1 Netherlands Amsterdam GMT 1 Namibia Windhoek GMT 2 Estonia Tallinn GMT 2 Finland Helsinki GMT 2 Gaza Strip Gaza GMT 2 Greece Athens GMT 2 Israel Tel Aviv GMT 2 Jordan Amman GMT 2 Latvia Riga GMT 2 Lebanon Beirut GMT 2 Moldova Kishinev GMT 2 Russia Kaliningrad GMT 2 Romania Bucharest GMT 2 Syria Damascus GMT 2 Turkey Ankara GMT 2 Uk...

Page 271: ...de GMT 9 30 Australia Darwin GMT 10 Australia Sydney Melbourne Canberra GMT 10 Australia Brisbane GMT 10 Australia Hobart GMT 10 Russia Vladivostok GMT 10 30 Australia Lord Howe Islands GMT 11 New Caledonia Noumea GMT 12 New Zealand Wellington Auckland GMT 12 45 New Zealand Chatham Islands GMT 13 Tonga Nukualofa Yealink IP phones trust the following CAs by default DigiCert High Assurance EV Root C...

Page 272: ... G3 VeriSign Class 3 Public Primary Certification Authority G4 VeriSign Class 3 Public Primary Certification Authority G5 VeriSign Class 4 Public Primary Certification Authority G2 VeriSign Class 4 Public Primary Certification Authority G3 VeriSign Universal Root Certification Authority Note This section describes how Yealink IP phones comply with the IETF definition of SIP as described in RFC 326...

Page 273: ...rt mid call changes such as placing a call on hold as signaled by a new INVITE that contains an existing Call ID ACK Yes CANCEL Yes BYE Yes OPTIONS Yes SUBSCRIBE Yes NOTIFY Yes REFER Yes PRACK Yes INFO Yes MESSAGE Yes UPDATE Yes PUBLISH Yes The following SIP request headers are supported Note In the following table a Yes in the Supported column means the header is sent and properly parsed ...

Page 274: ...Yes Call ID Yes Call Info Yes Contact Yes Content Length Yes Content Type Yes CSeq Yes Diversion Yes History Info Yes Event Yes Expires Yes From Yes Max Forwards Yes Min SE Yes P Asserted Identity Yes P Preferred Identity Yes Proxy Authenticate Yes Proxy Authorization Yes RAck Yes Record Route Yes Refer To Yes Referred By Yes Remote Party ID Yes Replaces Yes Require Yes Route Yes ...

Page 275: ...Notes 100 Trying Yes 180 Ringing Yes 181 Call Is Being Forwarded Yes 183 Session Progress Yes 2xx Response Successful Responses 2xx Response Supported Notes 200 OK Yes 202 Accepted Yes In REFER transfer 3xx Response Redirection Responses 3xx Response Supported Notes 300 Multiple Choices Yes In the following table a Yes in the Supported column means the header is sent and properly parsed The phone ...

Page 276: ...Yes 404 Not Found Yes 405 Method Not Allowed Yes 406 Not Acceptable No 407 Proxy Authentication Required Yes 408 Request Timeout Yes 409 Conflict No 410 Gone No 411 Length Required No 413 Request Entity Too Large No 414 Request URI Too Long Yes 415 Unsupported Media Type Yes 416 Unsupported URI Scheme No 420 Bad Extension No 421 Extension Required No 423 Interval Too Brief Yes 480 Temporarily Unav...

Page 277: ...Supported Notes 500 Internal Server Error Yes 501 Not Implemented Yes 502 Bad Gateway No 503 Service Unavailable No 504 Gateway Timeout No 505 Version Not Supported No 6xx Response Global Responses 6xx Response Supported Notes 600 Busy Everywhere Yes 603 Decline Yes 604 Does Not Exist Anywhere No 606 Not Acceptable No SDP Headers Supported v Protocol version Yes o Owner creator and session identif...

Page 278: ...L Cancels any pending searches but does not terminate a call that has already been accepted OPTIONS Queries the capabilities of servers REGISTER Registers the address listed in the To header field with a SIP server The following types of responses are used by SIP and generated by the IP phone or the SIP server SIP 1xx Informational Responses SIP 2xx Successful Responses SIP 3xx Redirection Respons...

Page 279: ... Ringing F4 100 Trying F11 BYE F12 BYE F13 200 OK F14 200 OK Step Action Description F1 INVITE User A to Proxy Server User A sends a SIP INVITE message to a proxy server The INVITE request is an invitation to User B to participate in a call session In the INVITE request The IP address of User B is inserted in the Request URI field User A is identified as the call session initiator in the From fiel...

Page 280: ...roxy Server to User A The proxy server forwards the SIP 100 Trying to User A to indicate that the INVITE request has been received by User B F5 180 Ringing User B to Proxy Server User B sends a SIP 180 Ringing response to the proxy server The 180 Ringing response indicates that the User B is being alerted F6 180 Ringing Proxy Server to User A The proxy server forwards the 180 Ringing response to U...

Page 281: ...er B wants to release the call F13 200 OK User A to Proxy Server User A sends a SIP 200 OK response to the proxy server The 200 OK response indicates that User A has received the BYE request The call session is now terminated F14 200 OK Proxy Server to User B The proxy server forwards the SIP 200 OK response to User B to indicate that User A has received the BYE request The call session is now ter...

Page 282: ...r B to participate in a call session In the INVITE request The IP address of User B is inserted in the Request URI field User A is identified as the call session initiator in the From field A unique numeric identifier is assigned to the call and is inserted in the Call ID field The transaction number within a single call leg is identified in the CSeq field The media capability User A is ready to r...

Page 283: ...g that User B is successfully connected but User B is busy on the IP phone and unable or unwilling to take the call F6 486 Busy Here Proxy Server to User A The proxy server forwards the 486 Busy Here response to notify User A that User B is busy F7 ACK User A to Proxy Server User A sends a SIP ACK to the proxy server The SIP ACK message indicates that User A has received the 486 Busy Here message ...

Page 284: ...EL F6 CANCEL Step Action Description F1 INVITE User A to Proxy Server User A sends an INVITE message to a proxy server The INVITE request is an invitation to User B to participate in a call session In the INVITE request The IP address of User B is inserted in the Request URI field User A is identified as the call session initiator in the From field A unique numeric identifier is assigned to the ca...

Page 285: ...A sends a SIP CANCEL request to the proxy server after not receiving an appropriate response within the time allocated in the INVITE request The SIP CANCEL request indicates that User A wants to disconnect the call F6 CANCEL Proxy Server to User B The proxy server forwards the SIP CANCEL request to notify User B that User A wants to disconnect the call F7 200 OK User B to Proxy Server User B sends...

Page 286: ...1 User A calls User B 2 User B answers the call 3 User A places User B on hold User A Proxy Server User B F1 INVITE B F2 INVITE B F7 ACK F8 ACK F3 180 Ringing F6 200 OK F5 200 OK F4 180 Ringing F12 200 OK F9 INVITE B sendonly F10 INVITE B sendonly F11 200 OK F14 ACK F13 ACK No RTP packets being sent 2 way RTP channel established ...

Page 287: ... to receive the RTP data is specified F2 INVITE Proxy Server to User B The proxy server maps the SIP URI in the To field to User B The proxy server sends the INVITE message to User B F3 180 Ringing User B to Proxy Server User B sends a SIP 180 Ringing response to the proxy server The 180 Ringing response indicates that the user is being alerted F4 180 Ringing Proxy Server to User A The proxy serve...

Page 288: ...00 OK User B to Proxy Server User B sends a SIP 200 OK response to the proxy server The 200 OK response notifies User A that the INVITE is successfully processed F12 200 OK Proxy Server to User A The proxy server forwards the 200 OK response to User A The 200 OK response notifies User B is successfully placed on hold F13 ACK User A to Proxy Server User A sends an ACK message to the proxy server Th...

Page 289: ...cepts the call from User C F9 INVITE A F11 180 Ringing F20 200 OK F1 INVITE B F3 180 Ringing F5 200 OK F7 ACK User A User B User C Proxy Server F2 INVITE B F4 180 Ringing F6 200 OK F8 ACK F10 INVITE A F12 180 Ringing F13 INVITE B sendonly F15 200 OK F316 200 OK F17 ACK F18 ACK F19 200 OK F21 ACK F22 ACK F14 INVITE B sendonly 2 way RTP channel established No RTP Packets being sent 2 way RTP channel...

Page 290: ...o receive is specified The port on which User B is prepared to receive the RTP data is specified F2 INVITE Proxy Server to User B The proxy server maps the SIP URI in the To field to User B The proxy server sends the INVITE message to User B F3 180 Ringing User B to Proxy Server User B sends a SIP 180 Ringing response to the proxy server The 180 Ringing response indicates that the user is being al...

Page 291: ...E request The IP address of User A is inserted in the Request URI field User C is identified as the call session initiator in the From field A unique numeric identifier is assigned to the call and is inserted in the Call ID field The transaction number within a single call leg is identified in the CSeq field The media capability User C is ready to receive is specified The port on which User A is p...

Page 292: ... to User A The 200 OK response notifies User B is successfully placed on hold F17 ACK User A to Proxy Server User A sends an ACK message to the proxy server The ACK confirms that User A has received the 200 OK response The call session is now temporarily inactive No RTP packets are being sent F18 ACK Proxy Server to User B The proxy server sends the ACK message to User B The ACK confirms that the ...

Page 293: ...ll and then one of the parties transfers the call to a third party without consultation This is called a blind transfer In this call flow scenario the end users are User A User B and User C They are all using Yealink SIP IP phones which are connected via an IP network The call flow scenario is as follows 1 User A calls User B 2 User B answers the call 3 User B transfers the call to User C 4 User C...

Page 294: ...rver User B F1 INVITE B F4 180 Ringing F6 200 OK F7 ACK 2 way RTP channel established F23 180 Ringing F11 REFER F12 202 Accepted F26 200 OK F2 INVITE B F3 180 Ringing F5 200 OK F8 ACK F22 INVITE C F19 200 OK F27 ACK F18 BYE 2 way RTP channel established F9 REFER F10 202 Accepted F17 BYE F20 200 OK F21 INVITE C F24 180 Ringing F25 200 OK F28 ACK User C ...

Page 295: ...epared to receive the RTP data is specified F2 INVITE Proxy Server to User B The proxy server maps the SIP URI in the To field to User B The proxy server sends the INVITE message to User B F3 180 Ringing User B to Proxy server User B sends a SIP 180 Ringing response to the proxy server The 180 Ringing response indicates that the user is being alerted F4 180 Ringing Proxy Server to User A The proxy...

Page 296: ... the proxy server has received the REFER message F11 REFER Proxy Server to User A The proxy server forwards the REFER message to User A F12 202 Accepted User A to Proxy Server User A sends a SIP 202 Accept response to the proxy server The 202 Accepted response indicates that User A accepts the transfer F13 BYE User B to Proxy Server User B terminates the call session by sending a SIP BYE request t...

Page 297: ...y Server to User A The proxy server forwards the SIP 200 OK response to User A F23 ACK User A to Proxy Server User A sends a SIP ACK to the proxy server The ACK confirms that User A has received the 200 OK response The call session is now active F24 ACK Proxy Server to User C The proxy server forwards the ACK message to User C The ACK confirms that User A has received the 200 OK response The call ...

Page 298: ...F4 180 Ringing F6 200 OK F7 ACK 2 way RTP channel established F9 INVITE B sendonly F12 200 OK F13 ACK F15 INVITE C F17 180 Ringing F19 200 OK F21 ACK F23 REFER F24 202 Accepted User C F2 INVITE B F3 180 Ringing F5 200 OK F8 ACK F10 INVITE B sendonly F11 200 OK F14 ACK F16 INVITE C F18 180 Ringing F20 200 OK F22 ACK 2 way RTP channel established F25 REFER F26 202 Accepted F31 BYE F32 BYE F33 200 OK...

Page 299: ...pared to receive the RTP data is specified F2 INVITE Proxy Server to User B The proxy server maps the SIP URI in the To field to User B The proxy server sends the INVITE message to User B F3 180 Ringing User B to Proxy Server User B sends a SIP 180 Ringing response to the proxy server The 180 Ringing response indicates that the user is being alerted F4 180 Ringing Proxy Server to User A The proxy ...

Page 300: ...INVITE message to User B F11 200 OK User B to Proxy Server User B sends a SIP 200 OK response to the proxy server The 200 OK response notifies User A that the INVITE was successfully processed F12 200 OK Proxy Server to User A The proxy server forwards the 200 OK response to User A The 200 OK response notifies User B is successfully placed on hold F13 ACK User A to Proxy Server User A sends an ACK...

Page 301: ...o User A The proxy server forwards the SIP 200 OK response to User A The 200 OK response notifies User A that the connection has been made F21 ACK User A to Proxy Server User A sends a SIP ACK to the proxy server The ACK confirms that User A has received the 200 OK response The call session is now active F22 ACK Proxy Server to User C The proxy server forwards the ACK message to User C The ACK con...

Page 302: ...erver User B sends a SIP 200 OK response to the proxy server The 200 OK response notifies User A that User B has received the BYE request F30 200OK Proxy Server to User A The proxy server forwards the SIP 200 OK response to User A The following figure illustrates successful call forwarding between Yealink SIP IP phones in which User B has enabled always call forward The incoming call is immediatel...

Page 303: ...een User A and User C User A Proxy Server User B User C F1 INVITE B F2 INVITE B F3 302 Move Temporarily F6 ACK F7 INVITE C F8 INVITE C F9 180 Ringing F10 180 Ringing F11 200 OK F12 200 OK F13 ACK F14 ACK F4 ACK 2 way RTP channel established F5 302 Move Temporarily ...

Page 304: ...ch User B is prepared to receive the RTP data is specified F2 INVITE Proxy Server to User B The proxy server maps the SIP URI in the To field to User B The proxy server sends the INVITE message to User B F3 302 Move Temporarily User B to Proxy Server User B sends a SIP 302 Moved Temporarily message to the proxy server The message indicates that User B is not available at SIP phone B User B rewrite...

Page 305: ...200OK User C to Proxy Server User C sends a SIP 200 OK response to the proxy server The 200 OK response notifies User A that the connection has been made F12 200OK Proxy Server to User A The proxy server forwards the SIP 200 OK response to User A The 200 OK response notifies User A that the connection has been made F13 ACK User A to Proxy Server User A sends a SIP ACK to the proxy server The ACK c...

Page 306: ...tination number is User C 2 User A calls User B 3 User B is busy 4 User B forwards the incoming call to User C 5 User C answers the call Call is established between User A and User C User A Proxy Server User B User C F1 INVITE B F2 INVITE B F3 180 Ringing F8 ACK F9 INVITE C F10 INVITE C F11 180 Ringing F12 180 Ringing F13 200 OK F14 200 OK F15 ACK F16 ACK F4 180 Ringing F5 302 Move Temporarily F6 ...

Page 307: ...ive the RTP data is specified F2 INVITE Proxy Server to User B The proxy server maps the SIP URI in the To field to User B The proxy server sends the INVITE message to User B F3 180 Ringing User B to Proxy Server User B sends a SIP 180 Ringing response to the proxy server The 180 Ringing response indicates that the user is being alerted F4 180 Ringing Proxy Server to User A The proxy server forwar...

Page 308: ...xy server forwards the SIP INVITE request to User C F11 180 Ringing User C to Proxy Server User C sends a SIP 180 Ringing response to the proxy server The 180 Ringing response indicates that the user is being alerted F12 180 Ringing Proxy Server to User A The proxy server forwards the 180 Ringing response to User A User A hears the ring back tone indicating that User C is being alerted F13 200OK U...

Page 309: ...ted via an IP network The call flow scenario is as follows 1 User B enables no answer call forward and the destination number is User C 2 User A calls User B 3 User B does not answer the incoming call 4 User B forwards the incoming call to User C 5 User C answers the call Call is established between User A and User C User A Proxy Server User B User C F1 INVITE B F2 INVITE B F3 180 Ringing F8 ACK F...

Page 310: ... is specified The port on which User B is prepared to receive the RTP data is specified F2 INVITE Proxy Server to User B The proxy server maps the SIP URI in the To field to User B The proxy server sends the INVITE message to User B F3 180 Ringing User B to Proxy Server User B sends a SIP 180 Ringing response to the proxy server The 180 Ringing response indicates that the user is being alerted F4 ...

Page 311: ...ging User C to Proxy Server User C sends a SIP 180 Ringing response to the proxy server The 180 Ringing response indicates that the user is being alerted F12 180 Ringing Proxy Server to User A The proxy server forwards the 180 Ringing response to User A User A hears the ring back tone indicating that User C is being alerted F13 200OK User C to Proxy Server User C sends a SIP 200 OK response to the...

Page 312: ...n Yealink IP phones in which User A mixes two RTP channels and therefore establishes a conference between User B and User C In this call flow scenario the end users are User A User B and User C They are all using Yealink SIP IP phones which are connected via an IP network The call flow scenario is as follows 1 User A calls User B 2 User B answers the call 3 User A places User B on hold 4 User A ca...

Page 313: ...ACK Session 1 established between User A and User B is hold F16 INVITE C F18 180 Ringing F17 180 Ringing F19 200 OK F20 200 OK F21 ACK F22 ACK Both calls are active come into three party conference User A Proxy Server User B User C Initiate three party conference Step Action Description F1 INVITE User A to Proxy Server User A sends the INVITE message to a proxy server The INVITE request is an invi...

Page 314: ...sends a SIP 180 Ringing response to the proxy server The 180 Ringing response indicates that the user is being alerted F4 180 Ringing Proxy Server to User A The proxy server forwards the 180 Ringing response to User A User A hears the ring back tone indicating that User B is being alerted F5 200 OK User B to Proxy Server User B sends a SIP 200 OK response to the proxy server The 200 OK response no...

Page 315: ...d on hold F13 ACK User A to Proxy Server User A sends the ACK message to the proxy server The ACK confirms that User A has received the 200 OK response The call session is now temporarily inactive No RTP packets are being sent F14 ACK Proxy Server to User B The proxy server sends the ACK message to User B The ACK confirms that the proxy server has received the 200 OK response F15 INVITE User A to ...

Page 316: ...proxy server The 200 OK response notifies User A that the connection has been made F20 200OK Proxy Server to User A The proxy server forwards the SIP 200 OK response to User A The 200 OK response notifies User A that the connection has been made F21 ACK User A to Proxy Server User A sends a SIP ACK to the proxy server The ACK confirms that User A has received the 200 OK response The call session i...

Page 317: ...00 Boss Admin Light 146 BToE 148 Busy Tone Delay 127 C Call Hold 132 Call Number Filter 134 Call Park 135 Call Waiting 116 Capturing Packets 241 CDP 153 Comfort Noise Generation 202 Configuration Files 18 Configuration Methods 15 Configuring Advanced features 151 Configuring Basic Features 61 Configuring Basic Network Parameters 22 Configuring Security Features 207 Connecting the IP phone 9 D DHCP...

Page 318: ...ning Server 20 Q Quality of Service 162 R Reading Icons 14 Redial Tone 120 Return Code When Refuse 129 Ringer Device for Headset 121 Ring Tones 179 S Save Call Log 110 Sign in 69 SIP 260 SIP Components 1 SIP Header 261 SIP IP Phone Models 3 SIP Request 260 SIP Responses 263 SIP Session Description Protocol Usage 265 SNMP 166 Softkey Layout 101 Specifying the Language to Use 96 Suppress DTMF Displa...

Page 319: ...Index 307 VLAN 151 Voice Activity Detection 200 Voice Mail without PIN 143 Voice Quality Monitoring 162 VoIP Principle 1 W Web Server Type 69 Web User Interface 17 ...

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