Yealink VC400 Administrator'S Manual Download

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Summary of Contents for VC400

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Page 2: ...GUIDE ARE BELIEVED TO BE ACCURATE AND PRESENTED WITHOUT WARRANTY OF ANY KIND EXPRESS OR IMPLIED USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR USE OF PRODUCTS YEALINK XIAMEN NETWORK TECHNOLOGY CO LTD M...

Page 3: ...on 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 r...

Page 4: ...Administrator s Guide for Yealink Video Conferencing Systems...

Page 5: ...cepts are necessary Documentations This guide covers the VC400 VC120 video conferencing system In addition to the administrator guide the following related documentations are available Quick Start Gui...

Page 6: ...ystem contacts and call history Chapter 7 Configuring Security Features describes how to configure security features on the system Chapter 8 System Maintenance describes how to upgrade system firmware...

Page 7: ...age 131 Dual Stream Protocol on page 183 Camera Control Protocol on page 195 Secure Real Time Transport Protocol on page 239 Changes for Release 21 Guide Version 21 20 The following sections are new f...

Page 8: ...page v Physical Features on page 2 VCM30 Video Conferencing Microphone Array on page 20 Remote Control Battery Safety Information on page 38 Static DNS on page 50 STUN on page 84 Keep Alive on page 8...

Page 9: ...wall or NAT on page 77 H 460 Firewall Traversal on page 91 Configuring SIP Settings on page 122 Audio Setting on page 177 Dual Stream Protocol on page 183 Camera Control Protocol on page 195 Dual Scre...

Page 10: ...Administrator s Guide for Yealink Video Conferencing Systems x...

Page 11: ...of Contents xi System Overview 1 VoIP Principles 1 Physical Features 2 Packaging Contents 3 VC400 Packaging Contents 3 VC120 Packaging Contents 6 System Component Instructions 10 VC400 VC120 Codec 10...

Page 12: ...g Network Speed and Duplex Mode 60 VLAN 61 LLDP 62 Manual Configuration for VLAN 65 DHCP VLAN 67 802 1X Authentication 68 H 323 Tunneling 73 Configuring the System for Use with a Firewall or NAT 77 Re...

Page 13: ...y Proxy 151 Default Layout of Single Screen 153 Configuring System Settings 155 General Setting 155 Site Name 155 Backlight of the Video Conferencing Phone 156 Language 157 Date Time 158 Automatic Sle...

Page 14: ...ce License 224 VCS Integrated with Control Systems 226 Configuring Security Features 227 User Mode 227 Administrator Password 228 Web Server Type 229 Transport Layer Security 232 Secure Real Time Tran...

Page 15: ...tistics 264 Using Diagnostic Methods 264 Troubleshooting Solutions 266 General Issues 267 Camera Issues 268 Video Audio Issues 269 Why does the far site display black screen when local starts a presen...

Page 16: ...Administrator s Guide for Yealink Video Conferencing Systems xvi...

Page 17: ...cations and multimedia sessions over IP networks The H 323 and Session Initiation Protocol SIP are two popular VoIP protocols that are found in widespread implementation H 323 H 323 is a recommendatio...

Page 18: ...all network topology which are designed to interoperate with other compatible equipment including application servers media servers Internet working gateways and other systems In order to operate syst...

Page 19: ...20P 1280x720 from 512Kbps W448P 768 x 448 WQVGA 400 x 240 4CIF 704 576 CIF 352 x 288 Packaging Contents We recommend that you use the accessories provided or approved by Yealink The use of unapproved...

Page 20: ...nistrator s Guide for Yealink Video Conferencing Systems 4 VCP40 Video Conferencing Phone L Bracket for installing the camera Camera Mounting Accessories VCR10 Remote Control AAA Batteries 2 Power Ada...

Page 21: ...tallation If you find that anything is missing contact your system administrator Optional Accessory The following item is optional for VC400 video conferencing system You should purchase it separately...

Page 22: ...ing Contents The VC120 video conferencing system can work with the VCP40 video conferencing phone VCP41 video conferencing phone or VCM30 video conferencing microphone array You can purchase any combi...

Page 23: ...System Overview 7 Camera Mounting Accessories VCR10 Remote Control AAA Batteries 2 Power Adapter Cables Velcro 2 Cable Ties 5...

Page 24: ...n the VC120 Codec and connect it to the Audio Out port of the VCP40 video conferencing phone with the 7 5m Ethernet cable VCP40 video conferencing phone can work as an audio device for the VC120 video...

Page 25: ...Codec and connect it to the Audio Out port of the VCP41 video conferencing phone with the 7 5m Ethernet cable VCP41 Video conferencing phone can work as an audio device for the VC120 video conferencin...

Page 26: ...120 video conferencing system you need to be familiar with the following system components including VC400 VC120 Codec VCC18 VCC20 HD Camera Video Conferencing Phone CPE80 Expansion Microphone VCM30 V...

Page 27: ...s on page 29 USB Inserts a USB flash drive to one of the two USB ports for storing screenshots recording videos or capturing packets Note If two USB flash drives are connected only the latter one can...

Page 28: ...ter Reset Key Resets the system to factory defaults Security Slot Allows you to connect a universal security cable to VC400 VC120 codec so you can lock it down The system cannot be removed when it is...

Page 29: ...Port Name Description Camera Connects to the Camera port on the VC400 VC120 codec using a DVI cable You can use the remote control to adjust the position or focus of the camera The camera can be pann...

Page 30: ...at the camera IR sensor to operate the unit Note Video Conferencing Phone VCP40 Video Conferencing Phone The VCP40 video conferencing phone supports 360 degree audio pickup to achieve ultra HD voice A...

Page 31: ...System Overview 15 Connect the VCP40 phone to the VC400 VC120 codec It can work as an audio device for the system You can also place calls answer calls or view directory and history on the VCP40 phone...

Page 32: ...displayed information Keypad Generates the digits and special characters Off hook Key Initiates a call or answers a call Presentation Key Enables or disables presentation Mute Key Toggles the mute fea...

Page 33: ...device Item Description PC Mobile Port Allows you to connect an optional PC or Mobile Device to your phone so that you can listen to the PC or mobile audio using your VCP41 video conferencing phone Co...

Page 34: ...to the audio on your VCP41 If your PC or mobile device receives an incoming call you can use VCP41 to listen and speak Adjusting the Volume of the PC or Mobile Audio When your PC or mobile device is...

Page 35: ...one has two MIC ports Up to two expansion microphones can be connected to a video conferencing phone CPE80 is a directional microphone Its coverage range is a 120 degree Always ensure that the speaker...

Page 36: ...ing the mute button during a call Name Description Built in Microphones Support 360 degree audio pickup at a radius of up to 3 meters Mute Button Mutes or unmutes the VCM30 For more information on the...

Page 37: ...VCM30 during a call 1 Tap to mute the call The mute indicator LED illuminates solid red And the mute icon appears on the local video image To unmute the VCM30 during a call 1 Tap again to unmute the...

Page 38: ...ator s Guide for Yealink Video Conferencing Systems 22 To view the VCM30 information via web user interface 1 Click Status To view the VCM30 information via the remote control 1 Select Menu Status Wir...

Page 39: ...or wakes the system up Red Shortcut Key Located at the bottom left of the screen Label automatically identifies context sensitive features In the idle screen this is used to enter the main menu screen...

Page 40: ...actions or answers incoming calls Navigation Key In the menu screen press or to switch menus press or to select items In the idle screen pan and tilt the camera to adjust the viewing angle Mute Key T...

Page 41: ...rt stop recording video Snapshot Key Generates a pound key Captures the image from the camera On the idle screen press to capture the image from the camera During a call long press to capture the imag...

Page 42: ...of the on screen keyboard Uppercase letters input mode of the on screen keyboard Characters input mode of the on screen keyboard Auto answer Missed calls Volume is 0 Do not disturb Do not disturb duri...

Page 43: ...B port on the VC400 VC120 codec Local contact Yealink Cloud contact Conference contact not applicable to VC120 VPN is enabled Icons on the Video Conferencing Phone Icons appearing on the video confere...

Page 44: ...cord a video Local contact Yealink Cloud contact Conference contact not applicable to VC120 Conference call Dialed calls H 323 account SIP account IP Call Dialed calls Cloud platform Received calls H...

Page 45: ...ashing green Press the key on the remote control Off The camera is not connected properly to the VC400 VC120 codec or the VC400 VC120 codec is powered off Indicator LED on the video conferencing phone...

Page 46: ...web user interface To access the web user interface you need to know the user name and the administrator s password The default user name is admin case sensitive and the default password is 0000 You...

Page 47: ...ocus of the camera Saving the camera preset Capturing the video images Control the video conferencing system remotely via the virtual remote control Note Remote Control You can use the remote control...

Page 48: ...sing the remote control you can also control the video conferencing system via web user interface To control video conferencing system via web user interface 1 Click Home Remote Control when the syste...

Page 49: ...introduces the following Installing the VC400 video conferencing system Installing the VC120 video conferencing system Installing the camera Installing batteries in the remote control Note Up to two...

Page 50: ...hone with the 7 5m Ethernet cable labeled Audio in 4 Locate the Display1 port on the VC400 codec and connect it to the HDMI port on the display device with the supplied HDMI cable Make sure the displa...

Page 51: ...t on the camera with the supplied DVI cable 3 Optional Locate the Audio In port of the VC120 codec do one of the following Connect it to the Audio Out port on the video conferencing phone with the 7 5...

Page 52: ...the supplied power adapter and power cord Note You can fasten all cables with cable ties after all devices are connected Installing the Camera You can choose to mount the camera on your TV or a wall...

Page 53: ...ositioning is 1 5m 1 8m above the ground Do the following 1 Punch holes into the wall and then insert the expansion bolts Installation location for the expansion bolts and punching requirement are sho...

Page 54: ...rol Battery Safety Information Never make wrong polarity connection when charging and discharging battery packs Avoid crushing puncturing or putting a high degree of pressure on any battery as this ca...

Page 55: ...ile The ROM file sits in the flash memory of the system Systems come from the factory with a ROM file preloaded During initialization systems run a bootstrap loader that loads and executes the ROM fil...

Page 56: ...ally 5 The display device displays the setup wizard when you first start up or reset the system the display device will display the setup wizard For more information on how to complete the setup wizar...

Page 57: ...ormat and the type of the daylight saving time The system obtains the time and date from the NTP server automatically by default You can also configure the time and date manually For more information...

Page 58: ...e default administrator password is 0000 For security reasons the administrator should change the default administrator password as soon as possible Note Do remember the new administrator password or...

Page 59: ...s Previous soft key to return to the previous screen 10 Configure network settings The phone will try to contact a DHCP server in your network to obtain network parameters by default If you uncheck th...

Page 60: ...C120 system communicates with other devices through a firewall you must configure your firewall to allow incoming and outgoing traffic to the VC400 VC120 system through the reserved ports specified in...

Page 61: ...re three default contacts stored in the local directory You can place a test call to the default contact and the test call will be routed to the Yealink demo video conferencing system Yealink demo con...

Page 62: ...Administrator s Guide for Yealink Video Conferencing Systems 46...

Page 63: ...rewall or NAT Intelligent Firewall Traversal Quality of Service VPN Preparing the Network Before you begin configuring the network options you must make sure your network is ready for video conferenci...

Page 64: ...connecting the system to the network The system broadcasts DISCOVER messages to request network information carried in DHCP options The DHCP server responds with the specific values in the correspondi...

Page 65: ...gs via DHCP options you need to contact your network administrator to configure the DHCP server properly DHCP feature parameters on the system are described below Parameter Description Configuration M...

Page 66: ...ll take effect after a reboot 5 Click Confirm to reboot the system immediately To configure DHCP via the remote control 1 Select Menu Advanced default password 0000 Internet Configuration IPv4 2 Check...

Page 67: ...lt Blank Note It only works if the value of the Static IPv4 DNS is set to On If you change this parameter the system will reboot to make the change take effect Remote Control Web User Interface Second...

Page 68: ...heckbox 3 Check the Static DNS checkbox 4 Enter the desired values in the DNS Primary Server and DNS Secondary Server fields respectively 5 Press the Save soft key to accept the change The display dev...

Page 69: ...Static IP Enables or disables the system to use manually configured network settings Default Disabled Note If you change this parameter the system will reboot to make the change take effect Remote Co...

Page 70: ...tem will reboot to make the change take effect Remote Control Web User Interface Secondary DNS Configures the secondary DNS server assigned to the system Default Blank Note If you change this paramete...

Page 71: ...ode via phone user interface 1 Select Menu Advanced default password 0000 Internet Configuration 2 Select IPv4 or IPv4 IPv6 from the IP Mode field 3 Press the Save soft key to accept the change The IP...

Page 72: ...r an IPv6 network you can set up an IP address for the phone either by using DHCPv6 or by manually entering an IP address Ensure that your network environment supports IPv6 Contact your ISP for more i...

Page 73: ...the system Default Blank Note If you change this parameter the system will reboot to make the change take effect Remote Control Web User Interface IPv6 prefix 0 128 Configures the IPv6 prefix Default...

Page 74: ...Note If you change this parameter the system will reboot to make the change take effect Remote Control Web User Interface To configure IPv6 address assignment method via web user interface 1 Click on...

Page 75: ...or to highlight IPv6 and press 4 Select the desired IPv6 address assignment method If you uncheck the DHCP checkbox configure the IPv6 address and other network parameters in the corresponding fields...

Page 76: ...r data over Ethernet This process entails devices first sharing transmission capabilities and then selecting the highest performance transmission mode supported by both systems Half duplex Half duplex...

Page 77: ...Advanced 2 Select the desired value from the pull down list of Network Speed 3 Click Confirm to accept the change A dialog box pops up to prompt that settings will take effect after a reboot 4 Click...

Page 78: ...on about other devices LLDP transmits information as packets called LLDP Data Units LLDPDUs An LLDPDU consists of a set of Type Length Value TLV elements each of which contains a particular type of in...

Page 79: ...ion Status Duplex mode and network speed settings of the system The Auto Negotiation is supported and enabled by default The advertised capabilities of PMD Auto Negotiation is 1000BASE T full duplex m...

Page 80: ...meters of LLDP feature on the system are described below Parameter Description Configuration Method LLDP Active Enables or disables LLDP feature on the system Default Disabled Note If you change this...

Page 81: ...Interval 1 3600s field 4 Press the Save soft key to accept the change The display device prompts Reboot now 5 Select OK to reboot the system immediately Manual Configuration for VLAN VLAN is disabled...

Page 82: ...the Internet WAN port Valid values 0 7 7 is the highest priority 0 is the lowest priority Default 0 Note If you change this parameter the system will reboot to make the change take effect Remote Cont...

Page 83: ...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 For more information on VLAN refer to...

Page 84: ...EE 802 1 group of networking protocols It offers an authentication mechanism for devices to connect to a LAN or WLAN The 802 1X authentication involves three parties a supplicant an authenticator and...

Page 85: ...s parameter the system will reboot to make the change take effect Web User Interface MD5 Password Configures the password for 802 1x authentication Note If you change this parameter the system will re...

Page 86: ...P 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...

Page 87: ...u 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 l...

Page 88: ...tificate d If you 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...

Page 89: ...K to reboot the system immediately H 323 Tunneling The H 245 protocol is a control protocol that manages the media sessions It is a part of the H 323 protocol suite The H 245 protocol is used primaril...

Page 90: ...Administrator s Guide for Yealink Video Conferencing Systems 74 If H 323 tunneling feature is disabled the setup processes of an H 323 call are shown below...

Page 91: ...rameter Description Configuration Method H 323 Tunneling Enables or disables the H 323 tunneling on the system You can configure it for the StarLeaf Cloud platform or H 323 call separately Default Dis...

Page 92: ...ed value from the pull down list of H 323 Tunneling 4 Click Confirm to accept the change To configure H 323 tunneling for H 323 via web user interface 1 Click on Account H 323 2 Select the desired val...

Page 93: ...nd outgoing traffic to the VC400 VC120 system through the reserved ports Users placing calls through a firewall to system may experience one way audio or video if the firewall is not properly configur...

Page 94: ...icipant requires 8 UDP ports and 2 TCP ports Each additional audio participant requires 2 UDP ports and 2 TCP ports Required ports for a SIP two way call Call Type Number of Required Ports Video 8 UDP...

Page 95: ...535 Default range 50000 50499 Note SIP and H 323 calls share the configured ports If you change this parameter the system will reboot to make the change take effect Remote Control Web User Interface T...

Page 96: ...ord 0000 NAT Firewall 2 In the Reserved block configure the range of the UDP ports and TCP ports 3 Press the Save soft key to accept the change The display device prompts Reboot now 4 Select OK to reb...

Page 97: ...host IP address If your system is connected to a LAN that uses a NAT you need to configure NAT Public IP Address so that your system can communicate to WAN Note Static NAT feature parameters on the sy...

Page 98: ...ompulsory NAT works when you are in multi level intranet network to solve the one way audio or video problem Default Auto Web User Interface NAT Traversal Configures the NAT traversal type You can con...

Page 99: ...the one way audio or video problem select Compulsory from the pull down list of Route Traversal to solve this problem 5 Click Confirm to accept the change To configure Static NAT for SIP account via w...

Page 100: ...Menu Advanced default password 0000 SIP IP Call 2 Select StaticNat from the pull down list of NAT Traversal 3 Press the Save soft key to accept the change STUN STUN is a network protocol used in NAT...

Page 101: ...iguration Method Active Enables or disables the STUN Simple Traversal of UDP over NATs feature on the system Default Disabled Remote Control Web User Interface STUN Server Configures the IP address or...

Page 102: ...er interface 1 Click on Network NAT Firewall 2 In the STUN Config block select the desired value from the pull down list of Active 3 Enter the IP address or the domain name of the STUN server in the S...

Page 103: ...ept the change To configure STUN for SIP IP call via web user interface 1 Click on Account SIP IP Call 2 Select STUN from the pull down list of NAT Traversal 3 Click Confirm to accept the change To co...

Page 104: ...ess and port are mapped to the same external IP address and port Unlike a full cone NAT an external host with IP address X can send a packet to the internal host only if the internal host had previous...

Page 105: ...lueJeans Mind Custom platform or SIP account separately Default 30 Note You cannot configure it for the Yealink StarLeaf Cloud platform Web User Interface To configure the keep alive interval for Zoom...

Page 106: ...onse back to the source port from which the request came Rport feature depends on support from a SIP server The rport parameter on the system is described below Parameter Description Configuration Met...

Page 107: ...ge To configure rport feature for SIP IP call via web user interface 1 Click on Account SIP IP Call 2 Select the desired value from the pull down list of RPort 3 Click Confirm to accept the change H 4...

Page 108: ...aling The H 460 18 solution perpetually hunts in order to open pinholes from the internal network to the external one Without using the H 460 18 solution which permits the gatekeeper to open a connect...

Page 109: ...mmunication for both the head office and a branch office In some cases the head office is in the WAN and lacks a VPN network while the branch office is in the LAN and no port mapping is configured on...

Page 110: ...he 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 a better network service...

Page 111: ...ndwidth service Assured Forwarding PHB defines a method by which BAs Bandwidth Allocations can be given different forwarding assurances Default PHB specifies that a packet marked with a DSCP value of...

Page 112: ...fault 63 Note If you change this parameter the system will reboot to make the change take effect Remote Control Web User Interface Video Priority Specifies the DSCP value for video packets Valid Value...

Page 113: ...prompts Reboot now 4 Select OK to reboot the system immediately VPN VPN Virtual Private Network is a secured private network connection built on top of public telecommunication infrastructures such a...

Page 114: ...gment The system uses OpenVPN to achieve the VPN feature To prevent disclosure of private information tunnel system must authenticate each other before secure VPN tunnel is established After the VPN f...

Page 115: ...files tar to the system Web User Interface To configure VPN via web user interface 1 Click on Network Advanced 2 In the VPN block click Browse to locate the VPN file tar from your local system 3 Clic...

Page 116: ...100 To configure VPN via the remote control 1 Select Menu Advanced default password 0000 Advanced Network 2 Check the VPN checkbox 3 Press the Save soft key to accept the change The display device pro...

Page 117: ...Timeout SIP IP Call by Proxy Configuring Cloud Settings Yealink video conferencing system is compatible with StarLeaf Zoom BlueJeans Pexip Mind virtual meeting service Users can access Virtual Meeting...

Page 118: ...enter complete Yealink Cloud numbers to place a call Yealink Cloud platform parameters on the system are described below Parameter Description Configuration Method Cloud Account Enables or disables th...

Page 119: ...rname Specifies the user name to log into the Yealink Cloud platform Default Blank Note It only works if the value of Login Type is set to user password Remote Control Web User Interface Password Spec...

Page 120: ...nk Cloud platform via the remote control 1 Select Menu Advanced default password 0000 Cloud 2 In the Cloud Account field check the Enabled checkbox 3 Select Yealink Cloud from the pull down list of Pl...

Page 121: ...Description Configuration Method Cloud Account Enables or disables the Cloud feature Default Enabled Note If it is disabled the system cannot log into the StarLeaf Cloud platform Remote Control Web U...

Page 122: ...sword 0000 Cloud 2 In the Cloud Account field check the Enabled checkbox 3 Select StarLeaf from the pull down list of Platform Type 4 Enter the 12 digit quick access code in the Qcp Code field 5 Press...

Page 123: ...r Interface Server Server Host Configures the IP address or domain name of the Zoom Cloud server Default zoomcrc com Remote Control Web User Interface Transport Configures the type of transport protoc...

Page 124: ...Zoom Cloud platform via the remote control 1 Select Menu Advanced default password 0000 Cloud 2 In the Cloud Account field check the Enabled checkbox 3 Select Zoom from the pull down list of Platform...

Page 125: ...ote Control Web User Interface Platform Type Configures the platform type Yealink Cloud StarLeaf Zoom Pexip BlueJeans Mind Custom Default Yealink Cloud Remote Control Web User Interface Alias Specifie...

Page 126: ...ce type and port if no server port is given Default TCP Web User Interface Server Expires Configures the registration expiration time in seconds of the Cloud server Default 3600 Web User Interface Rem...

Page 127: ...checkbox to remember your registration information 6 Press or to scroll to Log In and then press After successful registration the display device displays and the LCD screen of the video conferencing...

Page 128: ...erver Server Host Configures the IP address or domain name of the BlueJeans server Default bjn vc Remote Control Web User Interface Transport Configures the type of transport protocol for the BlueJean...

Page 129: ...dvanced default password 0000 Cloud 2 In the Cloud Account field check the Enabled checkbox 3 Select BlueJeans from the pull down list of Platform Type 4 Enter the domain name or IP address of BlueJea...

Page 130: ...address or domain name of the Mind server Default Blank Remote Control Web User Interface Transport Configures the type of transport protocol for the Mind platform UDP provides best effort transport...

Page 131: ...d from the pull down list of Platform Type 4 Enter the domain name or IP address of Mind server in the Server field 5 Press or to scroll to Log In and then press After successful registration the disp...

Page 132: ...g a custom account Default Blank Remote Control Web User Interface Register Name Configures the register name when registering a custom account Default Blank Remote Control Web User Interface Password...

Page 133: ...ures the registration expiration time in seconds of the custom server Default 3600 Web User Interface Remember password Enables or disables the system to remember the registration information Default...

Page 134: ...n information 6 Press or to scroll to Log In and then press Configuring the Third party Virtual Meeting Room A Virtual Meeting Room VMR is an online space typically hosted by a Cloud service provider...

Page 135: ...account Web User Interface VMR Name 2 Configures the virtual meeting room name Default Blue Jeans Note It only works when you do not log into a Cloud platform or you only register a Yealink Cloud acco...

Page 136: ...ting room server address Default Blank Note It only works when you do not log into a Cloud platform or you only register a Yealink Cloud account Web User Interface VMR Name 5 Configures the virtual me...

Page 137: ...nding fields respectively 3 Click Confirm to accept the change On your display device the VMRs will appear at the path Call Dial Call Type You can select the desired third party platform to call corre...

Page 138: ...Web User Interface User Name Specifies the user name to use for authentication when registering with a SIP server Default Blank Remote Control Web User Interface Password Specifies the password associ...

Page 139: ...the SIP account UDP provides best effort transport via UDP for SIP signaling TCP provides reliable transport via TCP for SIP signaling TLS provides secure communication of SIP signaling DNS NAPTR perf...

Page 140: ...soft key to accept the change After successful registration the display device displays and the LCD screen of the video conferencing phone displays SIP IP Call When making an IP call using the SIP pro...

Page 141: ...ms the DNS NAPTR and SRV queries for the service type and port if no server port is given Default TCP Remote Control Web User Interface To configure SIP IP call via web user interface 1 Click on Accou...

Page 142: ...Enabled Note Only when it is set to Enabled can H 323 account be registered When it is set to Enabled on both sites the VC400 VC120 can call the far site by dialing an IP address directly Remote Contr...

Page 143: ...uthentication Enables or disables support for gatekeeper authentication Default Disabled Note When Gatekeeper Authentication is enabled the gatekeeper ensures that only trusted H 323 systems are allow...

Page 144: ...or media encryption in H 323 calls Default Disabled For more information refer to H 235 on page 243 Web User Interface Protocol Monitor Port Specifies the port for the H 323 protocol Valid values 0 65...

Page 145: ...ey to accept the change After successful registration the display device displays and the LCD screen of the video conferencing phone displays Account Polling When you dial account numbers of other sys...

Page 146: ...s Cloud account highest priority to call system B If account polling is enabled system A will use its Cloud account highest priority to call system B first If this call fails system A continues to use...

Page 147: ...sed for telecommunication signaling over analog telephone lines in the voice frequency band DTMF is the signal sent from the IP phone to the network which is generated when pressing the keypad during...

Page 148: ...ith the other end during call establishment The RTP Event packet contains 4 bytes The 4 bytes are distributed over several fields denoted as Event End bit R bit Volume and Duration If the End bit is s...

Page 149: ...F info type when DTMF type is set to SIP INFO or RFC2833 SIP INFO You can configure it for the Cloud platform SIP account or SIP IP call separately DTMF Relay DTMF Telephone Event Default DTMF Relay R...

Page 150: ...ccept the change To configure DTMF type for SIP account via web user interface 1 Click on Account SIP Account 2 Select the desired value from the pull down list of DTMF Type If SIP INFO or RFC2833 SIP...

Page 151: ...onfirm to accept the change DTMF parameters for H 323 protocol on the system are described below Parameter Description Configuration Method DTMF Type Configures the DTMF type You can configure it for...

Page 152: ...the desired value from the pull down list of DTMF Type 4 Click Confirm to accept the change To configure DTMF type for H 323 via web user interface 1 Click on Account H 323 2 Select the desired value...

Page 153: ...s on the system Codec Algorithm Bit Rate Sample Rate Reference G 722 1c G 722 1 48 Kbps 32 Ksps RFC 5577 G 722 1c 32 Kbps 32 Ksps RFC 5577 G 722 1c 24 Kbps 32 Ksps RFC 5577 G 722 1 G 722 1 24 Kbps 16...

Page 154: ...le or enable the selected codec 4 Select the desired audio codec from the Enable Codecs column and click or to adjust the priority of the selected audio codecs 5 Optional If Yealink device has audio p...

Page 155: ...cs parameters on the system are described below Parameter Description Configuration Method Enable Codecs Specifies the enabled video codecs for the system to use Note All support video codecs are enab...

Page 156: ...ices The default call protocol on the system is Auto The system preferentially uses the H 323 protocol to place calls If there is no available H 323 account on the system the system will switch to the...

Page 157: ...To configure call protocol via the remote control 1 Select Menu Call Features Call Protocol 2 Select the desired value from the pull down list of Call Protocol 3 Press the Save soft key to accept the...

Page 158: ...atures 2 Select the desired value from the pull down list of DND 3 Click Confirm to accept the change If Enabled is selected the display device will display and the LCD screen of the video conferencin...

Page 159: ...auto answer multiway feature allows the system to answer new incoming calls automatically during an active call Auto answer parameters on the system are described below Parameter Description Configur...

Page 160: ...he video conferencing phone will display To configure auto answer via the remote control 1 Select Menu Call Features 2 Check the Auto Answer checkbox 3 Check the Auto Answer Mute checkbox 4 Check the...

Page 161: ...he pull down list of Auto Dialout Mute 3 Click Confirm to accept the change If Enabled is selected your video image will display mute icon when you place a call Call Match The call match feature allow...

Page 162: ...wn list of Call Match 3 Click Confirm to accept the change To configure call match via the remote control 1 Select Menu Call Features 2 Check the Call Match checkbox 3 Press the Save soft key to accep...

Page 163: ...history record via web user interface 1 Click on Setting Call Features 2 Select the desired value from the pull down list of History Record 3 Click Confirm to accept the change To configure history r...

Page 164: ...reen is the uplink bandwidth Note Bandwidth settings parameters on the system are described below Parameter Description Configuration Method Uplink Bandwidth Specifies the maximum transmitting bandwid...

Page 165: ...4 Press the Save soft key to accept the change Note Ringback Timeout Ringback timeout defines a specific period of time within which the video conferencing system will cancel the dialing if the call i...

Page 166: ...t is set to 200 the system will cancel the dialing if the call is not answered within 200s Web User Interface To configure ringback timeout via web user interface 1 Click on Setting Call Features 2 Se...

Page 167: ...to 120 the system will stop ringing if the call is not answered within 120s Web User Interface To configure auto refuse timeout via web user interface 1 Click on Setting Call Features 2 Select the de...

Page 168: ...he system actually uses SIP IP address to establish a connection On when dialing the URI of the far site the system uses SIP account to establish a connection The outbound proxy server should be confi...

Page 169: ...is established Remote big Local small Remote Full screen Equal Default Remote Full screen If it is set to Remote big Local small the remote video image is shown in big size and the local video image a...

Page 170: ...Administrator s Guide for Yealink Video Conferencing Systems 154 2 Select the desired value from the pull down list of Default Layout of Single Screen 3 Click Confirm to accept the change...

Page 171: ...Configuration Video Recording Screenshot Tones General Setting Site Name When the system is idle the site name is displayed on the status bar of display device and video conferencing phone You can mak...

Page 172: ...display the changed site name To configure the site name via the remote control 1 Select Menu Basic 2 Edit the site name in the Site Name field 3 Press the Save soft key to accept the change The LCD...

Page 173: ...light time of the video conferencing phone via web user interface 1 Click on Setting General 2 Select the desired value from the pull down list of Backlight Time 3 Click Confirm to accept the change L...

Page 174: ...To specify the language for the display device and the video conferencing phone via the remote control 1 Select Menu Basic 2 Select the desired language from the pull down list of Language 3 Press the...

Page 175: ...change this setting DST parameters are described below Parameter Description Configuration Method DHCP Time Enables or disables the system to update time with the offset time obtained from the DHCP s...

Page 176: ...and hour to be the DST start end date By Week specifies the month week day and hour the DST start end date Note It only works if the value of Daylight Saving Time is set to Enabled Web User Interface...

Page 177: ...DST Stop Day of Week DST Stop Day of Week Last in Month End Hour of Day Offset minutes Configures the DST offset time in minutes Valid values 300 to 300 Note It only works if the value of the Dayligh...

Page 178: ...one 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 Synchronism 15 86400s field 6 Select the desired va...

Page 179: ...in the End Hour of Day field 7 Enter the desired offset time in the Offset minutes field 8 Click Confirm to accept the change To configure the time and date manually via web user interface 1 Click on...

Page 180: ...em is in sleep mode it can still accept incoming calls The display device will prompt No Signal and the LCD screen of the video conferencing phone prompts Sleeping Press any key to resume You can pres...

Page 181: ...via the remote control 1 Select Menu Basic 2 Select desired value from the pull down list of Automatic Sleep Time 3 Press the Save soft key to accept the change Hide IP Address When the system is idle...

Page 182: ...t of the web user interface automatically after being inactive for a period of time default 5 minutes You need to re enter the user name and password to login You can only configure the relog offtime...

Page 183: ...ontrol If you disable this feature or system ringer volume is adjusted to 0 the system will not play a key tone when you press any key on the remote control Key tone is configurable via the remote con...

Page 184: ...ature only the people who know the meeting password can dial your system If your system is idle meeting password can prevent people from dialing your system If your system is during a call or conducti...

Page 185: ...ssword 2 Check the Meeting Password checkbox 3 Enter the meeting password in the Password field 4 Press the Save soft key to accept the change People can press IP meeting password or meeting password...

Page 186: ...ription Configuration Method Meeting Whitelist Number Add the IP address account or domain name of the remote system to the meeting whitelist Default blank Remote Control Web User Interface To add the...

Page 187: ...ports up to 100 blacklist records Blacklist is configurable via web user interface only The blacklist parameter is described below Parameter Description Configuration Method Meeting Blacklist Number A...

Page 188: ...achieve the best video effects Parameters of hiding icons in a call feature on the system are described below Parameter Description Configuration Method Time Icon Enables or disables the system to hi...

Page 189: ...abled the system displays camera icon during a call Default Disabled Web User Interface Recording Icon Enables or disables the system to hide recording icon during a call Disabled the system does not...

Page 190: ...t the hold icon will hide with UI Enabled the system displays hold icon during a call Default Disabled Web User Interface Encrypt Icon Enables or disables the system to hide encrypt icon during a call...

Page 191: ...g a call Disabled the system does not display gazeat icon during a call Hide with UI the system displays gazeat icon during a call but the gazeat icon will hide with UI Enabled the system displays gaz...

Page 192: ...d via web user interface 1 Click on Setting General 2 In the Keyboard IME block select the desired list from the Disabled column and click The selected input method appears in the Enabled column 3 Rep...

Page 193: ...ct the next highest priority device You can also specify the desired audio output device via the remote control or the web user interface The audio output device parameter is described below Parameter...

Page 194: ...t of Audio Output 3 Click Confirm to accept the change To configure the automatic sleep time via the remote control 1 Select Menu Video Audio Audio Settings 2 Select the desired value from the pull do...

Page 195: ...the remote control or the web user interface The audio output device parameter is described below Parameter Description Configuration Method Audio Input Specifies the audio input device for the VC400...

Page 196: ...efault Auto If Line Input is selected as the audio input device the near end audio output device will not play sound from the Line Input device If Line In device is selected as the audio input device...

Page 197: ...fragmented or dropped This results in poor quality video at the receiving device You can set the maximum MTU size of the video packets sent by the system The default value is 1500 bytes Specify the M...

Page 198: ...ter the desired value in the Video MTU field 3 Click Confirm to accept the change A dialog box pops up to prompt that the settings will take effect after a reboot 4 Click Confirm to reboot the system...

Page 199: ...protocol for sharing content MCU will automatically mix the content and camera video and send them in one channel For more information on mix sending refer to Mix Sending on page 187 Dual stream proto...

Page 200: ...84 3 Select the desired value from the pull down list of H 239 4 Click Confirm to accept the change To configure H 239 dual stream protocol for H 323 call via web user interface 1 Click on Account H 3...

Page 201: ...m platform via web user interface 1 Click on Account Cloud 2 Select Zoom Pexip BlueJeans Mind Custom from the pull down list of Platform Type 3 Select the desired value from the pull down list of BFCP...

Page 202: ...ed value from the pull down list of BFCP 3 Click Confirm to accept the change To configure BFCP dual stream protocol for SIP IP call via web user interface 1 Click on Account SIP IP Call 2 Select the...

Page 203: ...ot support receiving shared content In this case you can enable mix sending feature on the system Mix sending feature allows the sender to compound multiple video streams local image shared content to...

Page 204: ...backlight environment If the environment light is dark you can increase the compensation value Default Off Remote Control Web User Interface Flicker Disables or configures the value of camera flicker...

Page 205: ...alink recommends this setting for most situations It calculates the best white balance setting based on lighting conditions in the room One push Use the predefined color temperature settings to provid...

Page 206: ...14 Default For VCC18 camera the default value is 3 For VCC20 camera the default value is 10 Remote Control Web User Interface Sharpness Configures the sharpness of the camera Valid Values 0 14 Defaul...

Page 207: ...e Control Web User Interface Noise Reduction 3D Specifies the noise reduction 3D mode of VCC18 camera Off Low Middle High Default Off Note It is not applicable to VCC20 camera Remote Control Web User...

Page 208: ...mera Map Enables or disables the preview of camera presets Default On Note If it is set to on you can view the pre saved camera presets Remote Control Web User Interface Clear Preset Clears all camera...

Page 209: ...e display device of the far site during a call For the best view you can enable the Far Control Near Camera feature to allow the far site to control the focus and angle of the local camera You can als...

Page 210: ...era presets Default Disabled Remote Control Web User Interface Far Move to Camera Presets Enables or disables the far site to use the camera presets Default Disabled Remote Control Web User Interface...

Page 211: ...enabled the system will select the appropriate camera control protocol according to the protocol SIP or H 323 the call uses Camera control protocol parameters are described below Parameter Description...

Page 212: ...t the desired value from the pull down list of FECC H 323 4 Click Confirm to accept the change To configure FECC H 323 camera control protocol for H 323 calls via web user interface 1 Click on Account...

Page 213: ...latform via web user interface 1 Click on Account Cloud 2 Select Zoom Pexip BlueJeans Mind Custom from the pull down list of Platform Type 3 Select the desired value from the pull down list of FECC SI...

Page 214: ...e from the pull down list of FECC SIP 3 Click Confirm to accept the change To configure FECC SIP camera control protocol for SIP IP call via web user interface 1 Click on Account SIP IP Call 2 Select...

Page 215: ...resolution of primary display device Auto Automatically select the highest resolution supported by the display device 1920 1080 60Hz 1360 768 60 Hz 1280 720 60 Hz 720 480 60 Hz 640 480 60 Hz Default A...

Page 216: ...f you have high requirement for data security you can disable the USB feature If you disable the USB feature you cannot view the videos and screenshots stored in the USB flash driver via the remote co...

Page 217: ...e Before recording video you need to insert a USB flash drive to the USB port on the VC400 VC120 Codec to store recorded video Make sure the USB feature is enabled The video recording parameters on th...

Page 218: ...esired value from the pull down list of Auto Recording 4 Click Confirm to accept the change To record video when the system is idle via the remote control 1 Press to start recording and press again to...

Page 219: ...he remote control or web user interface Before capturing the screenshot you need to insert a USB flash drive to the USB port on the VC400 VC120 Codec to store screenshots Make sure the USB feature is...

Page 220: ...trol 1 Press To capture screenshots during a call via the remote control 1 Do one of the following Long press Press More soft key to open More screen Press or to scroll to Screenshot and then press to...

Page 221: ...ritain Greece Hungary Lithuania India Italy Japan Mexico New Zealand Netherlands Norway Portugal Spain Switzerland Sweden Russia United States Configured tones can be heard on the system for the follo...

Page 222: ...the tone ranges from 200Hz to 7000 Hz If it is set to 0Hz it means the tone is not played A tone consists of at most four different frequencies Duration the duration in milliseconds of the dial tone...

Page 223: ...orks if the parameter Select Country is set to Custom Web User Interface Auto Answer Customizes the auto answer tone for the system For more information on how to customize the tone refer to the param...

Page 224: ...Administrator s Guide for Yealink Video Conferencing Systems 208...

Page 225: ...a web user interface remote control and the video conferencing phone But you can edit or delete the local directory via web user interface and remote control If you register a Yealink Cloud account Ye...

Page 226: ...ntact 6 Select the desired contact bandwidth from the pull down list of Bandwidth The default contact bandwidth is Auto The system will select the appropriate bandwidth automatically 7 Click Confirm t...

Page 227: ...s via web user interface 1 Click on Directory Local Directory 2 Hover your cursor over the local contact you want to edit 3 Click in the pop up detail box 4 Edit the contact information 5 Click Confir...

Page 228: ...irectory Local Directory 2 Click Import Export and select Import 3 Click Browse to locate a contact list file file format must be xml from your local system 4 Click Confirm to import the contact list...

Page 229: ...hich is located in the first line of the CSV file 6 Optional Check the Delete Old Contacts checkbox It will delete all existing contacts while importing the contact list 7 Select the desired value fro...

Page 230: ...ocol for accessing and maintaining information services for the distributed directory over an IP network Yealink VCS systems are configurable to interface with a corporate directory server that suppor...

Page 231: ...search request to the LDAP server the LDAP server then performs a search based on the entered content and configured filter condition and returns results to the system LDAP Attributes The following t...

Page 232: ...ystem port 389 is used by default LDAPs TLS SSL connection between LDAP server and the system port 636 is used by default Default LDAP Web User Interface LDAP Server Address Configures the domain name...

Page 233: ...s should be separated by spaces Example cn sn Web User Interface LDAP Number Attributes Configures the number attributes of each record to be returned by the LDAP server Note multiple numbers attribut...

Page 234: ...the match is successful the system will display the contact name when places a call Web User Interface LDAP Sorting Results Enables or disables the system to sort the search results in alphabetical o...

Page 235: ...u can delete call history only via web user interface History record feature is enabled by default If it is disabled the call history won t be saved For more information refer to History Record on pag...

Page 236: ...o delete an entry from the call history list via web user interface 1 Click on Directory History The web user interface displays all call history 2 Mark the checkbox for the entry you want to delete 3...

Page 237: ...ource List In Dialing block select the desired list from the Disabled column and click The selected list appears in the Enabled column 3 Repeat step 2 to add more lists to the Enabled column 4 Optiona...

Page 238: ...entation In the primary display device the local video image is shown in full size In the secondary display device the presentation is shown in full size no menu and status bar Primary display device...

Page 239: ...e Primary display device Secondary display device When the VC400 VC120 is during multiple active calls take 4 parties as an example and starts a presentation In the primary display device the video im...

Page 240: ...and four other sites The basic version of VC120 video conferencing system supports up to 2 way video calls and an additional voice call an original caller and two other sites You can import an 8 way c...

Page 241: ...ust be dat from your local system 3 Click Upload to complete importing the 8 way conference license If the 8 way MCU displays Unsupported it means you have not imported an 8 way conference license If...

Page 242: ...eploy environment and configure the third party control system the Yealink video conferencing systems and the control devices you can remotely manage certain features of your video conferencing system...

Page 243: ...is enabled Users are prompted to enter the password when accessing the menus except the Status menu After the user mode is enabled the user can log into the web user interface of the system with user...

Page 244: ...ers can log into the web user interface and access the Advanced menu option with administrator privilege by default The default administrator password is 0000 and can be only changed by an administrat...

Page 245: ...rd or leave it blank in the User Password field 6 Click Confirm to accept the change To configure administrator password via the remote control 1 Select Menu Advanced default password 0000 Password Re...

Page 246: ...effect Web User Interface HTTPS Enables or disables the user to access the web user interface of the system using the HTTPS protocol Default Enabled Note If you change this parameter the system will r...

Page 247: ...s 231 5 Enter the desired HTTPS port in the HTTPS Port field 6 Click Confirm to accept the change A dialog box pops up to prompt that the settings will take effect after a reboot 7 Click Confirm to re...

Page 248: ...protocol is composed of two layers TLS Record Protocol and TLS Handshake Protocol The TLS Record Protocol completes the actual data transmission and ensures the integrity and privacy of the data The T...

Page 249: ...Client Key Exchange message Step4 Server sends Change Cipher Spec message to activate the negotiated options for all future messages it will send The system can encrypt SIP with TLS which is called SI...

Page 250: ...cate 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 syst...

Page 251: ...ily validate the CommonName or SubjectAltName of the certificate sent by the server Default Disabled Note If you change this parameter the system will reboot to make the change take effect Web User In...

Page 252: ...ficate to the system Note Only one device certificate can be uploaded to the system The device certificate you want to upload must be in pem or cer format Web User Interface To configure the trusted c...

Page 253: ...gure TLS for the Zoom Pexip BlueJeans Mind Custom platform via web user interface 1 Click on Account Cloud 2 Select Zoom Pexip BlueJeans Mind Custom from the pull down list of Platform Type 3 Select T...

Page 254: ...238 2 Select TLS from the pull down list of the Transport 3 Click Confirm to accept the change To upload a CA certificate via web user interface 1 Click on Security Trusted Certs 2 Click Browse to loc...

Page 255: ...pload to upload the certificate Secure Real Time Transport Protocol During a confidential call you can configure Secure Real Time Transport Protocol SRTP to encrypt RTP streams to avoid interception a...

Page 256: ...a fmtp 18 annexb no a rtpmap 9 G722 8000 a fmtp 101 0 15 a rtpmap 101 telephone event 8000 a ptime 20 a sendrecv The callee receives the INVITE message with the RTP encryption algorithm and then answe...

Page 257: ...blish call Optional SRTP Call SRTP Call RTP Call Disabled Fail to establish call RTP Call RTP Call When SRTP is enabled on both systems RTP streams will be encrypted and the lock icon appears on the d...

Page 258: ...ystems 242 3 Select the desired value from the pull down list of SRTP 4 Click Confirm to accept the change To configure SRTP for SIP account via web user interface 1 Click on Account SIP Account 2 Sel...

Page 259: ...ls the participants in the call must enable the H 235 feature simultaneously When a site places a call on the H 235 feature enabled system the system negotiates the encryption algorithm with the desti...

Page 260: ...Call When H 235 is enabled on both systems calls will be encrypted and the lock icon appears on the display device of each system during a call To configure H 235 for StarLeaf Cloud platform via web...

Page 261: ...rmal call answering feature for handling abnormal calls using the SIP protocol For abnormal calls using the H 323 protocol you can configure safe mode call feature to handle them Abnormal Call Answeri...

Page 262: ...IP Call Answer use IP to answer the SIP incoming call from public network Default IP Call Answer To configure abnormal call answering via web user interface 1 Click on Setting Call Features 2 Select...

Page 263: ...isabled do not use safe mode call Enabled use safe mode call Default Enabled Note If it is enabled the system will reject H 323 incoming call from public network If it is disabled any H 323 incoming c...

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Page 265: ...firmware You can upgrade the system firmware via web user interface The firmware name of the VC400 video conferencing system is 30 x x x rom x is the actual firmware version the firmware name of the...

Page 266: ...iting Note Importing Exporting Configuration We may need you to provide the system configurations for the Yealink field application engineers to help analyze problems You can import configurations to...

Page 267: ...still have not solved your problems When factory resetting the video system the following happens The call logs will be deleted Passwords will be reset to default All system parameters will be reset...

Page 268: ...tically This will take a few minutes SNMP SNMP Simple Network Management Protocol is an Internet standard protocol for managing devices on IP networks It is used mostly in network management systems t...

Page 269: ...ork management portion of the system was last re initialized YEALINK MIB 1 3 6 1 2 1 37459 2 1 5 0 The firmware version of the system YEALINK MIB 1 3 6 1 2 1 37459 2 1 6 0 The hardware version of the...

Page 270: ...change this parameter the system will reboot to make the change take effect Web User Interface Trusted Address Configures IP address es or domain name of the trusted SNMP server Multiple IP addresses...

Page 271: ...server in the Trusted Address field Multiple IP addresses or domain names should be separated by spaces 5 Click Confirm to accept the change A dialog box pops up to prompt that the settings will take...

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Page 273: ...Analyzing Configuration Files Viewing Call Statistics Using Diagnostic Methods Viewing Log Files The log files are Yealink specific debug files which may be requested by the Yealink support organizat...

Page 274: ...to Server Web User Interface System Log Level Specify the system log level Note The supported level is 0 9 Higher value indicates more detailed content Default 6 Web User Interface To configure the s...

Page 275: ...port to open the file download window and then save the file to your local system The following figure shows a portion of a log file To export a log file to a syslog server via web user interface 1 Cl...

Page 276: ...the Ethernet software Engineers can analyze the packets to troubleshoot problems Packets parameters are described below Parameter Description Configuration Method Pcap Feature Start and stop capturing...

Page 277: ...as http dns and sip are not supported If no protocol is specified all the protocols are used Direction Values src dst src and dst src or dst If no source or destination is specified the src or dst ke...

Page 278: ...packets having destination TCP port range from 200 to 10000 and destination IP network 10 0 0 0 8 Default Blank Note It only works if the parameter Pcap Filter Type is set to Custom To capture packets...

Page 279: ...he Internet ports of the system and the PC to the same hub and then use Sniffer Ethereal or Wireshark software to capture the signal traffic You can also set mirror port on a switch to monitor the por...

Page 280: ...cket Lost Packet Lost Share Resolution Codec Bandwidth Frame Rate Use the remote control to select More Call Statistics during an active call to view call statistics Using Diagnostic Methods The syste...

Page 281: ...t measures the round trip time from transmission to reception and reports errors and packet loss The results of the test include a statistical summary of the response packets received including the mi...

Page 282: ...sing You can click Copy to copy the content to the clipboard Troubleshooting Solutions This chapter provides general troubleshooting solutions to help you solve the problems you might encounter when u...

Page 283: ...are configured correctly in the system and whether the connection between the system and NTP server is working properly If you have configured the system to obtain the time and date manually ensure t...

Page 284: ...lay device display IP address Check whether the network is available Check whether the LAN property is configured correctly For more information on LAN property configuration refer to Configuring LAN...

Page 285: ...you are controlling is the remote camera Select More Near Far Camera during an active call and then select the remote video image Ensure the far site supports the same call protocol as the near site...

Page 286: ...ry Why is the voice quality poor Users may receive poor voice quality during a call such as intermittent voice low volume echo or other noise It is difficulty to diagnosis the root causes of the voice...

Page 287: ...Server address and the Media Server address The actual address is different from the negotiated address so that start a presentation in this situation will result in the failure of sending packets to...

Page 288: ...s The following guidelines help prevent image burn in Ensure that static images are not displayed for long periods Be aware that meetings that last more than an hour without much movement can have the...

Page 289: ...nd then click Confirm To avoid corrupting the system you should not unplug the power adapter from the system to power off the system Why does the system fail to upgrade Ensure that the firmware is dif...

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Page 291: ...00 Canada Manitoba Winnipeg 06 00 Chile Easter Islands 06 00 Mexico Mexico City Acapulco 06 00 United States Central Time 05 00 Bahamas Nassau 05 00 Canada Montreal Ottawa Quebec 05 00 Cuba Havana 05...

Page 292: ...b 01 00 Czech Republic Prague 01 00 Denmark Kopenhagen 01 00 France Paris 01 00 Germany Berlin 01 00 Hungary Budapest 01 00 Italy Rome 01 00 Luxembourg Luxembourg 01 00 Macedonia Skopje 01 00 Netherla...

Page 293: ...Omsk 06 30 Myanmar Naypyitaw 07 00 Russia Krasnoyarsk 07 00 Thailand Bangkok 08 00 China Beijing 08 00 Singapore Singapore 08 00 Australia Perth 08 00 Russia Irkutsk Ulan Ude 08 45 Eucla 09 00 Korea S...

Page 294: ...te Primary Root CA G1 EV Thawte Primary Root CA G2 ECC Thawte Primary Root CA G3 SHA256 Thawte Server CA VeriSign Class 1 Public Primary Certification Authority VeriSign Class 1 Public Primary Certifi...

Page 295: ...to memory constraints we cannot ensure a complete set of certificates If you are using a certificate from a commercial Certificate Authority not in the list above you can send a request to your local...

Page 296: ...Administrator s Guide for Yealink Video Conferencing Systems 280...

Page 297: ...guring Call Preferences 101 Configuring Camera Settings 188 Configuring Cloud Settings 101 Configuring H 323 Setting 126 Configuring LAN Properties 48 Configuring Network 47 Configuring Network Settin...

Page 298: ...Cloud Platform 106 M Manual Configuration for VLAN 65 Meeting Blacklist 171 Meeting Password 168 Meeting Whitelist 169 Methods of Transmitting DTMF Digit 132 Mix Sending 187 N Network Address Translat...

Page 299: ...250 USB Configuration 200 User Interfaces 30 User Mode 227 Using Diagnostic Methods 264 V VC400 VC120 Codec 10 VCC18 VCC20 HD Camera 12 VCM30 Video Conferencing Microphone Array 19 VCR10 Remote Contr...

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Yealink VC400, Administrator'S Manual

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