Yealink IP Phone, Manual

Page 1: ...ection in this guide before you set up and use the phone Declaration of Conformity Hereby it s declared that this phone is in conformity with the essential requirements and other relevant provisions of the CE FCC CE Mark Warning This is a class B device in a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures WEEE Warning ...

Page 2: ...9 Customizing Your Phone 11 General Settings 11 Phone Status 11 Language 11 Time and Date 12 Keypad Lock 13 Audio Settings 15 Volume 15 Ring Tones 15 Codec Selection 17 Contact Management 18 Edit Add Delete Contact 18 Import Export Contact list 20 Blacklist 21 Other Settings 22 Key as Send 22 Hot Line 23 Anonymous call 24 Auto Redial 25 Auto Answer 26 Missed call log 27 Logo Customization 28 Progr...

Page 3: ... an incoming call 43 DND 43 Call Forward 44 Intercom 45 During an Active Call 46 Mute 46 Call Hold 46 Call Waiting 46 Call Transfer 47 3 way Conference 48 Network Conference 48 Voicemail 49 Using the Advanced Phone Functions 52 Account Setting 52 TLS 52 DNS SRV 53 Network Setting 54 PC Port Setting 54 VLAN Setting 55 LLDP 56 HTTPS 57 Maintenance Tasks 58 Administrator Mode 58 Administrator User Pa...

Page 4: ... 66 URL Record 66 Shared Line 67 Conference 67 Forward 67 Transfer 68 Hold 68 DND 68 Redial 68 Call Return 69 Pick Up 69 Call Park 69 Group Listening 70 Voice Mail 70 DTMF 70 Public Hold 70 Private Hold 71 Group Pick up 71 Paging 71 Record 72 Prefix 72 Zero sp touch 72 ACD 72 Local Group 73 Tone Settings 73 Voice 74 Ring 75 Trouble Shooting 77 ...

Page 5: ...Enterprise IP Phone Getting Started 1 Getting Started Packing List The following components are included in your package Enterprise IP Phone Phone Stand Power Adapter Handset Handset Cord ...

Page 6: ...installation to ensure that you have received each item If you are missing any items contact your IP phone reseller Assembling the Phone This section introduce how to assemble the phone with the components in the packing list Attach the stand Connect Handset and Headset Connect Network and Power 1 Attach the Stand as shown below ...

Page 7: ...ation 3 Connect Network and Power There are two ways for network and power source connections You can either connect the phone to the AC Power directly using the power adapter or to a PoE compliant switch or hub Your system administrator will advise you on which one to use Note 1 If inline power is provided do not install AC adapter Make sure the Ethernet cable and switch hub are PoE compliant ...

Page 8: ...ar of web browser The default administrator s login name and password are admin admin The default user s login name and password are user user Note Please locate your PC in the same network segment of IP phone 192 168 3 X to access the web configuration page Please consult your system administrator for help Network Settings Choose Network Internet Port WAN DHCP Under the default situation the phon...

Page 9: ... provided by ISP When all accounts register fail phone will display No Service by default When the phone reboot it will register automatically If many phones register at the same time this will affect the server the users can set the register power up time so that the phone will random register automatically within the set time Setting the power up time via web interface Choose Network Advanced Re...

Page 10: ...ered and blink when someone calls in or there is a call on mute Hot Keys In different interfaces different functions of the hot keys Line Keys This buttons are used to active up to the two user accounts DTMF Keypad Use the DTMF hard keys to enter numbers letters and special characters Depending on the selected input mode you can enter digits lower upper case or special characters Navigation Keys U...

Page 11: ... voicemail directly Forward the current call to the third party When the phone is idle press to enter the forward configuration page Press to enter the Dialed Calls interface and choose a record to dial out LED Instruction Table 1 Line Keys LED Status Description Steady green The account is active Blinking green There is an incoming call to the account or there is a call on hold Off The phone is i...

Page 12: ...P Phone displays different kinds of icons on its LCD you can refer to the following table for their meanings Icon Description Flashes when the internet is disconnected Missed calls Call in Call out Input Method all letters and numbers Input Method numbers Input Method multi lingual letters in lower case Input Method multi lingual letters in upper case Call mute Call hold Voicemail Call forward Aut...

Page 13: ... user interfaces to operate the phone and change settings some however are only possible via a phone or web user interface Please refer to the following table for differences Phone Options Phone UI Web UI Status IP MAC Firmware Network Phone Accounts Call Features Forward Call Waiting DSS Keys Key as Send Hot Line Anonym Call Auto Redial DND ReDialTone Emergency BusyToneDelay Return code when refu...

Page 14: ...Reset Factory Set AES Key Set admin PWD Voice Upgrade Other Features Messages History Directory Note 1 The above table only indicates most of phone functions rather than all of them Please refer to the relating parts for more details The default administrator password is admin ...

Page 15: ...put the IP Address http WAN ip address Enter the account and password default account and password are both admin choose Status directly to check the status Language The default Phone interface language is English The Web interface language depends on your computer Operation System It will automatically match the language with your computer and browser It also supports French German Italian Polish...

Page 16: ...tomatically get the time from the specific NTP Server Use the navigation keys to highlight the specific options and do the relating changes You can set the Time Zone NTP Server1 Server2 and DST respectively 3 If Manual is chosen the time can be set manually Use the navigation keys to highlight the option and enter the specific date and time 4 Press OK button the time appears on the idle screen wil...

Page 17: ...n helps you to protect your phone from unauthorized use You can lock the following specific keys Menu Key The Menu keys can not be used until unlocked You can not access the menu of the phone Function Keys The hard function keys can not be used until unlocked You can not access the MESSAGE HEADSET TRAN RD Speaker CONF HOLD Navigation Keys OK button Mute button Volume Adjustment button etc All Keys...

Page 18: ...u choose Lock Answer it will show the icon and AA on the user interface To unlock the phone via Phone interface 1 Press MENU key you are prompted for the password 2 Enter the password and then press OK button the phone is unlocked 3 If you choose Lock Answer you have to enter MENU Settings Advanced Keypad Lock interface to disable this option To enable keypad lock via Web interface Choose Phone Pr...

Page 19: ...the Volume Adjustment Bar to a comfortable level Note The volume can only be adjusted via Phone interface Ring Tones You can adjust the type and volume of the ring tone To adjust the Ring Tone Type via Phone interface 1 Press MENU Settings Basic 2 Scroll to Ring Tone and press OK button 3 Use the navigation keys to highlight the specific one 4 Press OK button to save the contrast change or MENU to...

Page 20: ...ecific ring tone file 3 Click Upload button to upload the file Note The ring tone file format must be in 16bits WAV format via Ulaw Compression 8K sample rate monophony Blank or other special characters can not be included in the file name To specify ring tones for a specific account via Web interface Choose Account Basic Ring Type option and highlight the preferred one for the chosen account in t...

Page 21: ...the following voice codecs G 722 G 723_53 G 723_63 G 726 16 G 726 24 G 726 32 G 726 40 G 729 PCMU and PCMA You can enable disable the desired codecs via Web interface Please contact your System Administrator for more details about the codecs To enable disable the codecs 1 Choose Account Codecs ...

Page 22: ...ace Contact Management Edit Add Delete Contact You can store a large number of contacts in your phone s directory You can add edit delete dial or search for a contact in this directory The directory includes Local Directory and Blacklist To add a Group via Phone interface 1 Press MENU Directory Local Directory 2 Use left right navigation key to choose AddGroup press OK button to enter to the Add G...

Page 23: ...ss left right navigation keys to Edit Del page 4 Make the desired changes press OK button or press MENU return to previous menu To move a contact to the Blacklist via Phone interface 1 Press MENU Directory Local Directory 2 Choose a group and press OK button 3 Use the Up Down navigation key to highlight the contact you want to move then press left right navigation keys to M2B page 4 Make the desir...

Page 24: ...rface 1 Press the CONTACT hot key to enter the contact list 2 Press the digital number on the keypad it will turn to the search interface automatically and search the record in Contact Import Export Contact list Import Export Contact List via Web interface 1 Choose Contacts Local Phone Book ...

Page 25: ...ve the mouse to the icon you will see the notes for parameters The meanings of this icon on other pages is the same we will not elaborate it one by one 4 Click the Export button to export the contact list Note Import Export Contact List can be only set via Web interface Blacklist If you add a contact to blacklist then the call from this contact cannot get through The operation of blacklist is the ...

Page 26: ...ess MENU Features Key as Send OK to enter the configuration page 2 Press the Left Right navigation keys to choose a button that you want to use as the send key or disable this option 3 Press the OK button to save the changes To set the send key via the Web interface 1 Choose Phone Features Key As Send 2 Highlight the specific one in the pull down menu then click confirm button to save the change ...

Page 27: ...ber and set the HotLine Delay for example 20 seconds then press the OK button to save the changes 3 When you pick up the handset or press the speaker button and it will dial out the number automatically if you do not press any keys for 20 seconds To set the Hot Line via the Web interface 1 Choose Phone Features 2 Input the Hotline Number and Hotline Delay and then click the Confirm button to save ...

Page 28: ...d Anonym Off Code When you choose to enable the anonymous call function on your IP phone it will send information to the server and the server will enable disable the anonymous call function for your IP phone automatically 5 Press the navigation keys to enter and choose whether to enable the anonymous rejection function The feature allows the subscriber to reject all calls from callers who have bl...

Page 29: ...he relating changes Please refer to the instruction above for the parameters detail 2 Then click the Confirm button to save the changes Auto Redial Auto redial is a telephone feature that redials a busy number in a fixed number of times before giving up To set auto redial via the IP phone interface 1 Press MENU Features Auto Redial OK to enter the configuration page 2 By the navigation keys you ca...

Page 30: ...led or Disabled in the pull down menu then click Confirm button to save the change Auto Answer Auto answer allows an incoming call to be answered without requiring any action by the user This is a useful feature for people who have difficulty in using their hands or fingers who have a visual impairment or who have a cognitive impairment You can set this function to a special account To set Auto An...

Page 31: ...a Web interface 1 Choose Account Basic Auto Answer option 2 Choose Enabled or Disabled in the pull down menu click Confirm button to save the change Missed call log Defines whether to save the missed calls to the call history record This function can only be set via the Web interface 1 Choose Account Basic Missed call log 2 Choose Enabled or Disabled in the pull down menu click Confirm button to s...

Page 32: ... Phone Using the Basic Phone Functions 28 Logo Customization You can set text logo which shown in the idle screen 1 Choose Phone Features Use Logo via the Web interface choose enable or disable in the pull down menu ...

Page 33: ...on to save the change Programmable Key The hot key navigation keys and function keys on the keypad are editable Users can customize specific features for these keys according to their actual needs The programmable keys can only be available when the phone is idle This function can only be set via the Web interface 1 Choose Phone DSS Key Programmable Key ...

Page 34: ...hese keys 3 Click Confirm button to save the changes Live Dialpad Defines whether to dial out the dialed number automatically This function can only be set via the Web interface 1 Choose Phone Preference Live Dialpad 2 Enable or disable it in the pull down menu 3 Click Confirm button to save the change ...

Page 35: ...phone number This includes country codes access codes area codes and all combinations of digits dialed For example if you set the Prefix as 0 and Replace as 0086 Chinese country code when you dial 05702000 out the number will be replaced by 00865702000 automatically To set a Dial Plan via the Web interface 1 Choose Phone Dial Plan Replace Rule ...

Page 36: ...ing Del button 5 You can select a record to modify then click Edit button to submit Dial Now Dial now enables you to define the specific length of any number letter in advance for example xxx next time when users dial out the 123 whose length matches the Dial now rule the phone will dial out 123 immediately without pressing Send button To set a Dial Plan via the Web interface 1 Choose Phone Dial P...

Page 37: ... 2 the rest can be done in the same manner For example if you want to replace the any input content with the content beginning with 8 Input in Prefix box and input 8 1 in Replace box Area Code Area codes are also known as Numbering Plan Areas NPAs These are necessary for the most part only when dialed from outside the code area and from mobile phones Area codes usually indicate geographical areas ...

Page 38: ... can be forbidden to be call out from your IP phone 1 Choose Phone Dial Plan Block Out 2 Enter the phone number and Account and click Add button to save the changes or choose the specific one in the list click Del button to delete the record 3 You can select a record to modify then click Edit button to submit 4 You can not dial out the number from your IP phone unless it is removed from the forbid...

Page 39: ...n When enabled the synchronize function configure the DND FWD function on device or server DND FWD status on device and server will be in correspondence To set Feature Key Synchronisation via the Web interface 1 Choose Phone Features Feature Key Synchronisation 2 There is a pull down menu in the Type field choose Intercom from the list 3 Choose whether to enable this function from the pull down me...

Page 40: ...nction is Enabled phone will auto reboot after 10 seconds if some important process of phone crash When Disable the function the phone will not reboot Configure watchdog via web interface Choose phone Preference WatchDog in the pull down menu choose enable or disable this function ...

Page 41: ...esponding information to server Action URI Remote control phone for corresponding operation The operation can be recorded include Setup Completed Log On Log Off Register Failed Off hook On hook etc Set Action URL via web interface 1 Choose Phone action URL 2 Enter the Corresponding contents 3 Click Confirm to save the changes ...

Page 42: ...i bin ConfigManApp com key OK Our phone can support the following functions function Phone ip stand for the phone s IP address Key xxx stand for the following rules To answer the call key OK key ENTER To turn on speaker mode key SPEAKER Press transfer button key F_TRANSFER Increasing the volume key VOLUME_UP Reduce the volume key VOLUME_DOWN To mute the call key MUTE To hold the call key F_HOLD To...

Page 43: ...D key DNDOn To disable DND key DNDOff Dial out http phone IP cgi bin ConfigManApp com number NUMBER outgoing_uri URI Phone ip stand for the phone s IP address NUMBER stand for the number which you want to send URI stand for the account For example http 10 2 3 25 cgi bin ConfigManApp com number 0599123456 outgoing_uri 21 6 192 168 1 199 NOTE If there is no account or the account abnormal the phone ...

Page 44: ...e number which you dial must be in the same SIP server You can press an available line button if there is more than one account then 1 Dial the number you want to call or 2 Go to Directory use the navigation button to highlight your choice or 3 Press the Up navigation key to enter the call history interface then use the navigation keys to highlight your choice press Left Right button to chose All ...

Page 45: ...Call Info enter the number in the Dial a Number select the line from the Outgoing Identity list Then click the dial button to call out 3 Or choose Contact Phone Call Info click the number which you want to dial out from the call list the phone will dial out by corresponding account ...

Page 46: ...7 it will display 3 67 on the phone Set password dial via web interface 1 Choose phone features PswDial in the pull down menu choose enable 2 Enter the password prefix in the PswPrefix field 3 Enter the Length in the PswLength field 4 Click the confirm to save the changes Call Completion Have encountered such a situation When you call a contact but the other side is busy on a call Do you want the ...

Page 47: ...Press the X key to deny the incoming call directly DND If users enable the DND function all the incoming calls will be rejected and the display shows icon You can find the incoming call record in the Call History To configure the DND function via Phone interface 1 Go to MENU Features DND option to enter the configuration interface 2 Use the navigation keys to choose Enable Disable 3 Press the OK b...

Page 48: ...er the forward setting page directly when the phone is idle 2 There are 3 options Always Busy and No Answer 3 If you choose one of them enter the phone number you want to forward 4 If you want to realize this function by server please enter the On Code and Off Code option then when you choose to enable the call forward function via your IP phone it will send message to the server and the server wi...

Page 49: ... set whether to mute the incoming intercom calls automatically 4 Intercom Tone To set whether to play ring tones when there is incoming intercom calls to your extension 5 Intercom Barge To set whether to answer the incoming intercom calls during a conversation If the option is enabled when there is incoming intercom calls to your extension if you are on an intercom conversation it will refuse the ...

Page 50: ... your active call on hold 2 During the call there will be a dodo sound for each 30 second suggesting that there is a current call in Hold state 3 If there is only one call on hold press the HOLD button again to retrieve the call 4 If there is more than one call on hold press the Up Down button to highlight the call then press the HOLD button again to retrieve the call Note When you are under the c...

Page 51: ...hold then A can dial the third telephone number C and press the TRAN Button to call out A will turn to hold status and the LCD will display as Transferred 2 After C answered it or A press the MENU key to complete the transfer 3 A will be disconnected from the call B can talk to C 4 If C refused to answer the call it will prompt A that the transfer operation is failed If the current mode is speaker...

Page 52: ...ng the conversation three phone parties can communicate with each other To establish a conference 1 Press the CONF button during an active call 2 The first call is placed on hold You will hear a dial tone Dial the number to conference in then press the SEND key 3 Press the MENU key to stop the conference in operation before the call is answered 4 When the call is answered you can have a private co...

Page 53: ...nce Voicemail Your voice mailbox messages which are usually stored on a media server of your local or hosted VoIP telephony system can be accessed from your phone New voice messages can be indicated both acoustically and visually as described below The idle screen will indicate the new voice messages coming The MESSAGE button will be lighted To configure the Voicemail code via Phone interface 1 Pr...

Page 54: ...oicemail via the Phone interface 1 Press Menu Messages Voice Mail View Voice Mail 2 You can view the amount of the voice mail that includes new or old voice mail 3 Choose the account and press the Connect button then you are able to listen to your new and old messages To retrieve the new voicemail via the Phone interface 1 Press the MESSAGE button directly 2 You may be prompted to enter the passwo...

Page 55: ...Enterprise IP Phone Using the Basic Phone Functions 51 Before retrieving the new voicemail please make sure that the connecting code has been set on the phone ...

Page 56: ...e default value is 5060 RPort The parameter allows you configuring the proxy to send responses back to a particular address and port The default is disabled SIP Session Timer This document defines an extension to the Session Initiation Protocol SIP This extension allows for a periodic refresh of SIP sessions through a re INVITE or UPDATE request The refresh allows both user agents and proxies to d...

Page 57: ...e UI will display the icon on both side Go to Account Basic choose Transport option in the pull down menu you can choose the TLS option then click the Confirm button to save the change DNS SRV If the SIP server cannot be used the phone will be connected on the server which is available To set DNS SRV via web interface Go to Account Basic choose Transport option in the pull down menu you can choose...

Page 58: ...ou select the Router mode the SIP phone will work as a router IP address User could configure the PC port IP address Enable DHCP Server If you set the DHCP server on the device connected to the PC port will get the IP address automatically between the start IP address and the end IP address But if you select the bridge mode the DHCP server can not work Start IP Address Indicate the range of the IP...

Page 59: ...ollowing table lists the instruction of the field about the VLAN Setting Field Name Description Voice QoS When the network capacity is insufficient QoS could provide priority to users by setting the value Local RTP Port Define the port for voice transmission WebServer Users can choose the WebServer type Disable HTTP HTTPS or HTTPS HTTP To configure VLAN settings via Phone interface 1 Press MENU Se...

Page 60: ...LLDP function the phone will go to switch to get related VLAN parameters automatically Synchronous with VALAN in switch To configure LLDP settings via Web interface 1 Choose Network Advanced LLDP Active option in the pull down menu choose enable 2 Then enter the corresponding Packet Interval in Packet Interval field 3 You can also disable this function when you choose disable in active field 4 Cli...

Page 61: ...ket Layer Adding SSL layer under HTTP in short it is a security version of HTTP Users can set this transmission mode via web page To configure HTTPS settings via Web interface Go to Network Advanced choose WebServer option in the pull down menu of Type field choose the transmission mode and then click the Confirm button to save the changes ...

Page 62: ...ure the phone User Mode Administrator Mode Administrator mode grants unlimited access to the phone configuration on both Web and Phone interface User Mode is not able to access the settings on the Phone interface such as Accounts Network Reset to Factory other advance phone settings Administrator User Password Administrator mode grants unlimited access to the phone configuration on both web and ph...

Page 63: ...ace Click the Logout button in the top right corner Reboot You should reboot the phone when you are challenged e g after applying changes to the phone configuration To reboot via Web interface 1 Choose Upgrade Basic 2 Click Reboot button 3 You are prompted to confirm the change press OK to confirm the changes press Cancel to cancel the operation Note Please do not power off during reboot or it wil...

Page 64: ...ur local computer click Import button 3 It will take a few minutes to reset please do not power off during resetting or it will cause flash memory error Firmware Update The phone is delivered with pre installed firmware which allows operating your phone flawlessly If you require updating the phone s firmware please contact your system administrator You can only update the firmware via Web interfac...

Page 65: ...nd updates the new firmware the range is 1 30 days Note 1 Any power interruption during the following process will most likely lead to a flash memory error As a result the system cannot boot up anymore 2 The upgrade priority is PNP Custom Option URL by descending 3 Users can also delete some configuration options by Auto provision for example to delete the admin password Decryption This IP phone c...

Page 66: ... option 3 Press the OK button to save the changes Zero sp touch Zero sp touch this function can help users to configure AUTOP and network parameters quickly Enable this function when the power is on or press the corresponding DSSKEY the phone will turn to the zero sp touch interface Turn on Zero sp touch via web interface 1 Choose Upgrade Advanced Zero Active in the pull down menu choose enable to...

Page 67: ...utton to export the file PCAP Trace Export The PCAP Trace used to record the date transport of your IP phone If there are any errors happened in your phone you can export the PCAP trace and send to your system administrator for diagnosis To export the PCAP Trace Choose Upgrade Advanced to enter select PCAP Trace option click Start button began to capture the trace and click Stop to stop capture th...

Page 68: ...LF Line Speed Dial Intercom URL Record Shared Line Conference Forward Transfer Hold DND Redial Call Return Pick Up Call Park Group Listening Voice Mail DTMF Public Hold Private Hold Group Pick up Paging Record BLF List Prefix Zero sp touch ACD Local Group Note 1 Quick access features like Intercom and Voicemail must first be configured on your PBX in order to work on your phone See your system adm...

Page 69: ...LF key it will call out the 83 automatically to pickup the incoming call on 212 BLF List BLF list is a function which can monitor the group status it is not one to one monitoring but the information feedback from the sever to decide which BLF list will monitor which account To set BLF List via web interface 1 Choose Account Advanced BLF List URI enter the BLF List URI 2 Then enter the BLF List Cod...

Page 70: ...the assignment there is a pull down menu in the Type field choose Intercom from the list 2 Enter the extension number you want to intercom in the Value field 3 In the Line field select a line for which to apply this key the default one is Line 1 4 Press Confirm button to save the changes Note Your VoIP PBX must support this feature And make sure the Intercom Allow is enable URL Record During the c...

Page 71: ...ne from the list 2 Enter the condition code in the Value field 3 In the Line field select a line for which to apply this key the default one is Line 1 4 Press Confirm button to save the changes Conference You are allowed to configure the DSS key to be used as a conference key while remaining in the current call This key allows a user on a call to conference another party while remaining in the con...

Page 72: ...l during the conversation To assign the key as Hold 1 Choose Phone DSS Key Line Key choose one of the keys you want to make the assignment there is a pull down menu in the Type field choose Hold from the list 2 Press Confirm button to save the changes DND If the key is configured as DND key you are allowed to active the DND function immediately when you press it Press it again to deactivate DND mo...

Page 73: ...a pull down menu in the Type field choose Pick Up option from the list 2 Enter the feature code for example input 78345 78 is the feature code and the 345 is the extension number you want to pickup in the Value field 3 In the Line field select a line for which to apply this key 4 Press Confirm button to save the changes Call Park Call Park is a feature that allows a person to put a call on hold at...

Page 74: ...il When the key is configured as Voicemail key you are allowed to access voicemail quickly by pressing this key To assign the key as Voice Mail 1 Choose Phone DSS Key Line Key choose one of the keys you want to make the assignment there is a pull down menu in the Type field choose Voice Mail from the list 2 Enter the number you want to set as the voice mail box in the Value field 3 In the Line fie...

Page 75: ...hen when the monitored group receives a call you can press this key to pick up the incoming call If the group receives multiple calls simultaneously you will pick up the specific one the server assigns to you To assign the key as Group Pick Up 1 Choose Phone DSS Key Line Key choose one of the keys you want to make the assignment there is a pull down menu in the Type field and choose Group Pick Up ...

Page 76: ...eys you want to make the assignment there is a pull down menu in the Type field and choose Prefix from the list and enter the number you want to show up on the dial interface in the Value field 2 Press Confirm button to save the changes Zero sp touch You can also press the DSSKey which set as the Zero sp touch Then press the DSSKey the phone will turn to the Zero sp touch interface To assign the k...

Page 77: ...ress Confirm button to save the changes Note ACD is not available on all call servers For more information contact your system administrator Local Group The keys can be configured as Local Group key Then pressing this key under the idle status you can enter the Local Group interface To assign the key as Local Group 1 Choose Phone DSS Key Line Key choose one of the keys you want to make the assignm...

Page 78: ...e Phone Voice 2 Set the following parameters shown in the table Parameter Description Echo canceller Defines whether to enable the echo canceller VAD Voice activity detection VAD also known as speech activity detection or speech detection is a technique used in speech processing in which the presence or absence of human speech is detected CNG A comfort noise generator CNG is a program used to gene...

Page 79: ...ced Phone Functions 75 3 Press Confirm button to save the changes Cancel to cancel the changes Ring Users can group your contacts and then set the ringing tone for each group To edit the Ring option via Web interface 1 Choose Phone Ring ...

Page 80: ...hone Using the Advanced Phone Functions 76 2 Internal Ringer Text To set group name For example family 3 Internal Ringer File To choose a special ring tone for the group 4 Click the Confirm button to save the changes ...

Page 81: ...AN port to static IP client mode During a call I can not hear any voice 1 Make sure your handset is tightly connected with the phone 2 Check whether you have muted the conversation or not 3 Consult the outbound server details with your ISP Have DTMF problem 1 Check which kind of DTMF you are using and whether it is compatible with the server 2 Consult the payload value with your ISP How to change ...

Page 82: ...he firmware you choose is provided by your service provider or the device will probably crash after the update How to auto provision Consult the auto provision server address with your ISP The manual is only for reference please take the object as the standard We reserve the right to improve or change the product and the user guide without notice You can download the latest user manuals from our w...