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320HD IP Phone

Administrator's Manual

Document #: LTRT-08108

Configure the services according to the parameters in the table below, and then click

Submit

Table

3-10: Supplementary Services Parameters Description

Web Parameter

Configuration File Parameter

Description

Application Server Type

voip/services/application_server_type

Refer to Section

4.2.6.9.1

Call Waiting

Activate

voip/services/call_waiting/enabled

Refer to Section

4.2.6.9.2

Call Waiting SIP Reply

voip/services/call_waiting/sip_reply

Call Forward

Enable voip/line/%d/call_forward/enabled

Refer to Section

4.2.6.9.3

Activate voip/line/%d/call_forward/active

Call Forward Type

voip/line/%d/call_forward/type

Forward on No Reply
Timeout

voip/line/%d/call_forward/timeout

Forward Destination

voip/line/%d/call_forward/destination

DND (Do Not Disturb)

Activate voip/services/do_not_disturb/enabled

Refer to Section

4.2.6.9.4

Message Waiting Indication

Voice Mail Number

voip/services/msg_waiting_ind/voice_
mail_number

Refer to Section

4.2.6.9.6

Activate voip/services/msg_waiting_ind/enable

Subscribe To MWI

voip/services/msg_waiting_ind/subscr
ibe

MWI Server IP Address or
Host Name

voip/services/msg_waiting_ind/subscr
ibe_address

MWI Serve Port

voip/services/msg_waiting_ind/subscr
ibe_port

MWI Subscribe Expiry Time

voip/services/msg_waiting_ind/expirai
tion_timeout

BLF Support

Activate voip/services/busy_lamp_field/enable

Refer to Section

4.2.6.9.7

BLF Subscription Period

voip/services/busy_lamp_field/subscri
ption_period

User Resource List

voip/services/busy_lamp_field/uri

Use Registrar as Application
Server Address

voip/services/busy_lamp_field/applica
tion_server/use_registrar

General Parameters

Stutter Tone Duration

voip/services/msg_waiting/stutter_ton
e_duration

Refer to Section

4.2.6.9.1

Содержание 320HD

Страница 1: ...AudioCodes 300HD Series of High Definition IP Phones HD VoIP 320HD IP Phone Administrator s Manual 320HD IP Phone Version 1 4 1...

Страница 2: ......

Страница 3: ...es 29 3 4 4 2 Loading Ring Tones 30 3 5 Configuring LAN Interface 31 3 6 VoIP Settings 32 3 6 1 Configuring SIP 33 3 6 2 Configuring Dialing 36 3 6 3 Configuring Media Streaming 37 3 6 4 Configuring V...

Страница 4: ...ain Control AGC Parameters 77 4 2 6 3 Codec Parameters 78 4 2 6 4 SRTP Parameters 79 4 2 6 5 Media Streaming Parameters 79 4 2 6 6 SIP Signaling Parameters 80 4 2 6 6 1 General Parameters 80 4 2 6 6 2...

Страница 5: ...bruary 2011 6 2 Keypad and Off Hook On Hook Test 104 6 3 Green Color LEDs Test 105 6 4 Red Color LEDs Test 106 6 5 Handset Test 106 6 6 Headset Test 108 6 7 Speaker Test 110 6 8 MAC Address and Serial...

Страница 6: ...23 Restore Defaults Page 52 Figure 3 24 Confirmation Box 52 Figure 3 25 Restart System Page 52 Figure 3 26 Confirmation Box 52 Figure 3 27 TR 069 Page 53 Figure 3 28 Telnet Page 54 Figure 3 29 Networ...

Страница 7: ...69 Management Configuration File Parameters 72 Table 4 9 Telnet Configuration File Parameters 73 Table 4 10 Line Configuration File Parameters 73 Table 4 11 General Gain Configuration File Parameters...

Страница 8: ...320HD IP Phone Administrator s Manual 8 Document LTRT 08108 Reader s Notes...

Страница 9: ...Codes AC AudioCoded Ardito CTI2 CTI CTI Squared HD VoIP HD VoIP Sounds Better InTouch IPmedia Mediant MediaPack NetCoder Netrake Nuera Open Solutions Network OSN Stretto TrunkPack VMAS VoicePacketizer...

Страница 10: ...320HD IP Phone Administrator s Manual 10 Document LTRT 08108 Related Documentation Document Name 300HD IP Phone Release Notes 320HD IP Phone Quick Guide 320HD IP Phone User s Manual...

Страница 11: ...phone The IP Phone offers a wide variety of management and configuration tools Phone s LCD user interface easy to use menu driven LCD screen providing basic phone configuration and status capabilitie...

Страница 12: ...320HD IP Phone Administrator s Manual 12 Document LTRT 08108 Reader s Notes...

Страница 13: ...g the phone refer to Section 2 7 on page 21 These administration settings are performed in the phone s Administration menu refer to Section 2 1 2 1 Accessing the Administration Menu The Administration...

Страница 14: ...configure the phone s LAN connection type 1 Access the Settings screen MENU key Administration menu Network Settings submenu The following screen appears 2 Press the Select softkey to choose LAN Conne...

Страница 15: ...meter i e Static IP Netmask Gateway Primary DNS and Secondary DNS choose the parameter using the and Navigation keys and then press the Edit softkey Enter the new address in dotted decimal notation us...

Страница 16: ...LINE keys on your phone For each line you need to configure a SIP account To configure the phone s SIP account 1 Access the SIP Accounts screen MENU key Administration menu SIP Accounts submenu The f...

Страница 17: ...Display Name Authentication Name Authentication Password SIP Proxy Address SIP proxy server s address 5 After each parameter setting press the Save softkey to save the setting 6 When you have complet...

Страница 18: ...nection Type static IP or automatic IP DHCP IP address Netmask Gateway Primary and Secondary DNS MAC address To view the phone s network status 1 Access the Network Status screen MENU key Status menu...

Страница 19: ...ne s model type firmware version and configuration file version To view the phone s firmware version model type and configuration version 1 Access the Software Versions screen MENU key Status menu Fir...

Страница 20: ...ge appears requesting you to confirm 2 Press the Yes softkey to confirm reset to defaults or No if you want to cancel Note You can also restore the phone to default settings by using a hard coded sequ...

Страница 21: ...ots if a new configuration is provided The phone can be configured to reboot even if no configuration update is required The phone supports the optional reboot parameter located in the Event header of...

Страница 22: ...320HD IP Phone Administrator s Manual 22 Document LTRT 08108 Reader s Notes...

Страница 23: ...ddress used for accessing the Web interface is the phone s IP address received from a DHCP server or manually configured static IP address To access the phone s Web interface 1 Connect the LAN port of...

Страница 24: ...areas Toolbar displays AudioCodes logo and provides the following buttons Home opens the Home page Log Off closes the Web interface Navigation Bar provides tabs for accessing the configuration menus C...

Страница 25: ...ribed below To quickly setup your phone 1 Access the Quick Setup page Configuration tab Quick Setup menu Quick Setup Figure 3 4 Quick Setup Page 2 For a description of the parameters on this page refe...

Страница 26: ...g tones refer to Section 3 4 4 on page 29 3 4 1 Changing LCD Display Language You can choose the language of the LCD display To choose a language 1 Access the Language page Configuration tab Personal...

Страница 27: ...IP address or domain name e g number IP address or domain name 3 Click Submit the contact appears in the Directory list at the bottom of the page To edit a contact 1 If the contact does not appear in...

Страница 28: ...tion 4 4 For BLF configuration file parameters refer to Section 4 2 6 9 7 To add a speed dial 1 Access the Speed Dial page Configuration tab Personal Settings menu Speed Dial Figure 3 7 Speed Dial Pag...

Страница 29: ...progress tones CPT of the country in which the phone is located To select the geographical location of your phone 1 Access the Tones page Configuration tab Personal Settings menu Tones Figure 3 8 Tone...

Страница 30: ...e s User s Manual To upload a ring tone 1 Access the Tones page Configuration tab Personal Settings menu Tones Figure 3 9 Tones Page 2 In the Ringing Tone Name field enter the name of the ring tone fi...

Страница 31: ...guration tab Network Connections menu LAN Settings Figure 3 10 LAN Settings Page 2 Configure the LAN settings according to the parameters in the table below and then click Submit Table 3 4 LAN Paramet...

Страница 32: ...LAN Settings VLAN Discovery Mode network lan vlan mode Refer to Section 4 2 2 Period network lan vlan period VLAN ID network lan vlan id VLAN Priority network lan vlan priority 3 6 VoIP Settings The V...

Страница 33: ...011 3 6 1 Configuring SIP The Signaling Protocol page allows you to define various SIP signaling parameters To define the phone s SIP settings 1 Access the Signaling Protocol page Configuration tab Vo...

Страница 34: ...de_ptime Enable Keep Alive using OPTIONS voip signalling sip keepalive_options en abled Keep Alive Period voip signalling sip keepalive_options ti meout Connect Media on 180 Response voip signalling s...

Страница 35: ...bound_proxy addr Outbound Proxy Port voip signalling sip sip_outbound_proxy port Use Redundant Proxy voip signalling sip redundant_proxy ena bled Redundant Proxy Address voip signalling sip redundant_...

Страница 36: ...d then click Submit Table 3 6 Dialing Parameters Description Web Parameter Configuration File Parameter Description Dialing Timeout voip dialing timeout Refer to Section 4 2 6 7 Phone Number Length vo...

Страница 37: ...g sip digit_map Dial Plan voip signalling sip number_rules Automatic Dialing Activate voip dialing auto_dialing enabled Refer to Section 4 2 6 7 Timeout voip dialing auto_dialing timeout Destination P...

Страница 38: ...d Type voip media dtmf_payload Quality of Service QoS Type of Service ToS voip media media_tos Refer to Section 4 2 6 5 Codecs Codec Type voip codec codec_info d name Refer to Section 4 2 6 3 Packetiz...

Страница 39: ...rameters Description Web Parameter Configuration File Parameter Description Gain Control Enable Automatic Gain Control voip audio gain automatic_gain_contro l enabled Refer to Section 4 2 6 2 Automati...

Страница 40: ...u Line Settings Figure 3 15 Line Settings Page 2 Configure the line according to the parameters in the table below and then click Submit Table 3 9 Line Parameters Description Web Parameter Configurati...

Страница 41: ...entary Services You can configure various supplementary services supported by your phone such as call waiting call forwarding three way conferencing and message waiting indication MWI To define servic...

Страница 42: ...on DND Do Not Disturb Activate voip services do_not_disturb enabled Refer to Section 4 2 6 9 4 Message Waiting Indication Voice Mail Number voip services msg_waiting_ind voice_ mail_number Refer to Se...

Страница 43: ...4 2 6 7 Electronic Hook Switch voip services electronic_hook_switch enabled Refer to Section 4 2 6 9 1 3 6 7 Configuring Volume Levels You can configure various volume parameters such as speaker tones...

Страница 44: ...Input voip audio gain handsfree_analog_inp ut_gain Handset Gain Parameters Handset Digital Output voip audio gain handset_digital_outpu t_gain Refer to Section 4 2 6 2 3 Handset Digital Input voip au...

Страница 45: ...and Time page Configuration tab Advanced Applications menu Date and Time Figure 3 18 Date and Time Page 2 Configure the date and time according to the parameters in the table below and then click Subm...

Страница 46: ...0HD IP Phone Administrator s Manual 46 Document LTRT 08108 Web Parameter Configuration File Parameter Description Update Interval system ntp sync_time Time Display Format system ntp time_display_forma...

Страница 47: ...dress and firmware file name respectively 4 The phone then checks whether new firmware is available by checking the firmware file header If the version is different from the one currently running on t...

Страница 48: ...Configuration File Parameter Description Provisioning Method provisioning method Refer to Section 4 2 3 Firmware URL provisioning firmware url Configuration URL provisioning configuration url DHCP Op...

Страница 49: ...ding new Configuration File button the following page appears Figure 3 21 Load New Configuration File 3 Click the Browse button and then select the required configuration file located on your local PC...

Страница 50: ...to the IP network and then connect the phone to the power outlet a The phone sends a TFTP request to the IP address indicated in the DHCP Option 66 field to retrieve the firmware file indicated in the...

Страница 51: ...nge the login username and password 1 Access the System Authorization page Management tab Administration menu Users Figure 3 22 System Authorization Page 2 In the Username field enter a user name 3 In...

Страница 52: ...lts Figure 3 23 Restore Defaults Page 2 Click the Submit button a confirmation box appears prompting you to confirm Figure 3 24 Confirmation Box 3 Click OK 3 11 Restarting Phone You can use the Web in...

Страница 53: ...lick Submit and then OK at the confirmation box prompt Table 3 15 TR 069 Parameters Description Web Parameter Configuration File Parameter Description Activate management tr069 enabled Refer to Sectio...

Страница 54: ...t access to the phone To enable telnet 1 Access the Telnet page Management tab Remote Management menu Telnet Figure 3 28 Telnet Page 2 From the Activate drop down list select Enable 3 Click Submit and...

Страница 55: ...cs tab System Status menu Network Status Figure 3 29 Network Status Page 3 14 2 Viewing Call History You can view a list of received calls missed calls and dialed numbers To view call history log 1 Ac...

Страница 56: ...ersion Number You can view the phone s model name as well as the firmware version currently running on the phone To view the phone s model and version number Access the System Information page Status...

Страница 57: ...Status Diagnostics tab Diagnostics menu Logging Figure 3 32 System Logging Page 2 Configure system logging according to the parameters in the table below and then click Submit Table 3 17 System Loggi...

Страница 58: ...then click Submit Table 3 18 Packet Recording Parameters Description Web Parameter Configuration File Parameter Description Remote IP Address or Host Name voip packet_recording remote_ip Refer to Sec...

Страница 59: ...es on either side of the equals sign Each parameter must be on a new line Below is an example of part of a Configuration file system type 320HD voip line 0 enabled 1 voip line 0 id 1234 voip line 0 de...

Страница 60: ...own in the example below shown in bolded font system type 320HD include http 10 10 10 10 320HD_ MAC _voip cfg include https remote pc vlan_conf cfg include tftp 10 10 10 10 320HD_ MAC _network cfg inc...

Страница 61: ...0HD 4 2 1 2 Username and Password Parameters Table 4 2 Username and Password Configuration File Parameters Parameter Description Note To add a value to these parameters enter system followed by the pa...

Страница 62: ...og sip_log_fi lter Filters the type of the VoIP application logging 0 default Logging is disabled 1 SIP Call Control 2 SIP Stack 3 SIP Call Control and SIP Stack 4 User Application 5 SIP Call Control...

Страница 63: ...ng system ntp daylight_saving start_date month 2 system ntp daylight_saving start_date day 22 system ntp daylight_saving start_date hour 14 system ntp daylight_saving start_date minute 30 system ntp d...

Страница 64: ...trieves the date and time 0 Disable default 1 Enable obtains the time information from a configured NTP server system ntp primary_serv er_address Defines the address of the main NTP server this can be...

Страница 65: ...ess enabled Enables setting the IP address manually 0 Disable default 1 Enable Note If enabled network lan fixed_ip ip_address must be set network lan dhcp netma sk enabled Enables setting the network...

Страница 66: ...ort is reflected in the PC port VLAN network lan vlan mode Determines the VLAN mode of operation Disable Disable Manual Manual Configuration of LAN Static configuration of VLAN ID and priority CDP Aut...

Страница 67: ...s information received from the DHCP server Option fields 42 or 4 over the static configuration system ntp primary_server_address and system ntp secondary_server_address 0 Disable 1 Enable default ne...

Страница 68: ...trieved firmware file is 320HD img ftp 192 168 2 1 Different_Firmware_Name img retrieved firmware file is Different_Firmware_Name img Note This parameter is applicable only when method is configured t...

Страница 69: ...when type is configured to weekly provisioning period wee kly time The hour in the day for automatically checking for new firmware and configuration files The format of this value is hh mm where hh i...

Страница 70: ...conflict with other DHCP options settings provisioning random_pr ovisioning_time Defines the maximum random number to start the provisioning process This is used for periodic checking of firmware and...

Страница 71: ...visioning speed_dial _uri The URI for retrieving the speed dial list The speed dial list must be included in a separate file that can be downloaded to the phone during provisioning For example provisi...

Страница 72: ...L management tr069 user_ name Username used to authenticate the device when making a connection to the ACS management tr069 pass word Password used to authenticate the device when making a connection...

Страница 73: ...r the other lines it is 0 disabled voip line d id Lines VoIP user s ID for identification to initiate and accept calls The user s ID can be up to 30 characters voip line d description Arbitrary name t...

Страница 74: ...ios The valid range is 1 to 31 dB The default value is 10 10dB voip audio gain ringer_sig nal_level Ringing tone volume This volume can be modified on the fly by pressing the phone s VOLUME key when t...

Страница 75: ...b plus54db MUTE The default is plus39db 4 2 6 2 3 Handset Gain Parameters Table 4 13 Handset Gain Configuration File Parameters Parameter Description Handset Gain Parameters Note Values are in decibel...

Страница 76: ...er Description Headset Gain Parameters Note Values are in decibels dB and represented as follows Negative values use the word minus e g minus9db Positive values use the word plus e g plus9db Decimal p...

Страница 77: ...inus15db minus18db minus21db minus24db minus27db MUTE The default is minus12db 4 2 6 2 5 Automatic Gain Control AGC Parameters Table 4 15 AGC Configuration File Parameters Parameter Description voip a...

Страница 78: ...s client If you do wish to force the use of a specific codec configure the list with only that specific codec The d variable stands for the priority 0 Disabled 1 default Enabled voip codec codec_info...

Страница 79: ...yload type used for RFC 2833 DTMF relay packets The valid range is 96 to 127 The default value is 101 voip media media_port Defines the starting port range for Real Time Protocol RTP voice transport T...

Страница 80: ...essages The valid range is 1024 to 65535 The default value is 5061 voip signalling sip port Defines the local SIP port UDP or TCP for SIP messages The valid range is 1024 to 65535 The default value is...

Страница 81: ...lls When enabled the outgoing INVITE message is sent with an anonymous From header and P Asserted Identity header 0 Disable default 1 Enable For example FROM header contains anonymous URI From Anonymo...

Страница 82: ...2 9 11 911 rule 211 311 411 511 611 711 811 911 are dialed immediately 9 0 Local operator rule After dialing 0 the phone waits T seconds and then completes the call automatically 9 100 Auto attendant...

Страница 83: ...as an attended transfer even after the Transferor hangs up This is the recommended flow defined by http tools ietf org html draft ietf sipping cc transfer 03 Existing Current behavior is kept for back...

Страница 84: ...r port The UDP or TCP port of the Registrar server The valid range is 1024 to 65535 The default value is 5060 voip signalling sip sip_o utbound_proxy enabled Determines whether an outbound SIP proxy s...

Страница 85: ...he phone is registered to the primary proxy it sends keep alive messages using SIP OPTIONS messages to the primary proxy If the primary proxy does not respond the phone registers to the redundant prox...

Страница 86: ...nd is multiplied by two until SipT2Rtx voip signalling sip sip_t4 The SIP T4 retransmission timer according to RFC 3261 The valid range is 5000 to 60000 The default value is 1000 voip signalling sip s...

Страница 87: ...key The valid value is a single character The default value is the pound key voip dialing dialtone_tim eout The maximum duration of the dial tone in seconds after which the dial tone stops and a reord...

Страница 88: ...ly dialed when the phone is off hooked The valid value can be up to 32 characters 4 2 6 8 Voice Parameters Table 4 24 Voice Configuration File Parameters Parameter Description voip audio jitter_buffer...

Страница 89: ...ch enabled Enables the Electronic Hook Switch DHSG feature 0 Disable default 1 Enable voip auto_answer enable d Enables the Automatic Answering feature 0 Disable default 1 Enable The incoming INVITE m...

Страница 90: ...6 9 3 Call Forward Parameters Table 4 27 Call Forward Configuration File Parameters Parameter Description voip line d call_forwar d enabled Enables the Call Forward feature 0 Disable 1 Enable default...

Страница 91: ...8 Do Not Disturb Configuration File Parameters Parameter Description voip services do_not_di sturb enabled Enables the Do not Disturb feature 0 Disable 1 Enable default 4 2 6 9 5 Call Pickup Parameter...

Страница 92: ..._ind subscribe_address The IP address or host name of the MWI server The default value is 0 0 0 0 voip services msg_waitin g_ind expiraition_timeout The interval between the MWI Subscribe messages The...

Страница 93: ...d value is up to 64 characters Note This parameter is applicable only if the parameter voip services application_server_type is set to BSFT voip services busy_lamp _field application_server use_regist...

Страница 94: ...r is enabled the selected_country parameter is not relevant and the below Call Progress Tones values can be determined by the user 0 default Disable 1 Enable Call Progress Tones CPT Note Up to 10 CPT...

Страница 95: ...te voip regional_settings c all_progress_tones d t one_on_0 tone_on_0 to tone_on_3 If the signal is Cadence or Burst then this value represents the on duration If a Continuous tone then this value rep...

Страница 96: ...uch as Wireshark The default value is 0 0 0 0 voip packet_recording re mote_port Defines the UDP port of the remote computer to which the recorded packets are sent The valid range is 1024 to 65535 The...

Страница 97: ...ish Russian Russian Portuguese Portuguese German German Ukraine Ukraine French French personal_settings lcd_c ontrast Determines the LCD contrast The valid range is 0 to 14 The default value is 7 pers...

Страница 98: ...s are required the relevant field must be left empty For example in the below directory entry the home and user defined numbers are absent John Smith 1234 574685746 4 4 Creating a Speed Dial File The...

Страница 99: ...erver is BroadWorks To configure BLF for BroadWorks 1 Access the Services page Configuration tab Voice Over IP menu Services The figure s callouts below correspond to the steps in this procedure Figur...

Страница 100: ...amp_field application_server use_registrar parameter drop down list select Enable The Registrar s address is used as the application server s address defined by the parameter voip signalling sip sip_r...

Страница 101: ...ion for Special Application Server Example Asterisk 2 From the Type drop down list select Asterisk Coral or Metaswitch 3 In the BFL Support group configure the following a From the Activate drop down...

Страница 102: ...320HD IP Phone Administrator s Manual 102 Document LTRT 08108 Reader s Notes...

Страница 103: ...set receiver playing listening test Headset microphone recording speaking and headset headphone receiver playing listening test Speaker microphone recording speaking and speaker receiver playing liste...

Страница 104: ...the receiver on hook To test the keypad and on hook state 1 Using the keypad dial the number 0123456789 and then press the star key the phone s LCD screen displays a graphical display of the keypad w...

Страница 105: ...the Green color LEDs test in Section 6 3 on page 105 6 3 Green Color LEDs Test Upon the successful completion of the Keypad and On Hook Off Hook test in the previous section the LCD screen displays th...

Страница 106: ...EDs for red color lighting 1 Press any key all the LEDs turn red as shown in the figure below Figure 6 5 Red LEDs Test 2 Continue with the Handset test in Section 6 5 on page 106 6 5 Handset Test Upon...

Страница 107: ...ook the phone the LCD screen displays the message start recording Figure 6 7 Handset Test Recording 3 Speak into the handset microphone after about five seconds the LCD screen displays the message sta...

Страница 108: ...listening To test the headset 1 After about five seconds after your recorded voice is played in the Handset test in the previous section the LCD screen displays the message Prepare to test headset Pre...

Страница 109: ...Administrator s Manual 6 Built in Test Plan Version 1 4 1 109 February 2011 Figure 6 11 Headset Test Playing 4 Continue with the Speaker test in Section 6 7 on page 110...

Страница 110: ...ludes the following Speaker microphone transmitter for speaking recording Speaker receiver for listening playing To test the speaker 1 After about five seconds after your recorded voice is played in t...

Страница 111: ...after about five seconds the LCD screen displays the message playing and the voice that was recorded when you spoke into the speaker s microphone is now played from the speaker s receiver Figure 6 14...

Страница 112: ...ss and serial number are correct To verify the MAC Address and Serial Number 1 After about five seconds after your recorded voice is played in the Speaker test in the previous section the LCD screen d...

Страница 113: ...er Buffer 300 msec Voice Activity Detection Comfort Noise Generation Packet Lost Concealment RTP RTCP Packetization RFC 3550 RFC 3551 SRTP RFC 3711 DTMF Relay RFC 2833 Telephony Features Call Hold Un...

Страница 114: ...dware LCD screen Graphic LCD 132 64 mono Connectors interfaces 9 2 x RJ 45 ports 10 100BaseT Ethernet for WAN and LAN 9 RJ 9 port jack for Headset 9 RJ 9 port jack for Handset Mounting 9 Wall mounting...

Страница 115: ...Administrator s Manual 7 Specifications Version 1 4 1 115 February 2011 Reader s Notes...

Страница 116: ...AudioCodes 300HD Series of High Definition IP Phones HD VoIP 320HD IP Phone Administrator s Manual 320HD IP Phone Version 1 4 1 www audiocodes com...

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