Yealink SIP-T2 Series Service manual

In

Copyright
Copyright © 2016 YEALINK(XIAMEN) NETWORK TECHNOLOGY CO., LTD.
Copyright © 2016 Yealink(Xiamen) Network Technology CO., LTD. All rights reserved. No parts of this
publication may be reproduced or transmitted in any form or by any means, electronic or mechanical,
photocopying, recording, or otherwise, for any purpose, without the express written permission of
Yealink(Xiamen) Network Technology CO., LTD. Under the law, reproducing includes translating into
another language or format.
When this publication is made available on media, Yealink(Xiamen) Network Technology CO., LTD. gives
its consent to downloading and printing copies of the content provided in this file only for private use
but not for redistribution. No parts of this publication may be subject to alteration, modification or
commercial use. Yealink(Xiamen) Network Technology CO., LTD. will not be liable for any damages arising
from use of an illegally modified or altered publication.
Warranty
THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS GUIDE ARE SUBJECT TO
CHANGE WITHOUT NOTICE. ALL STATEMENTS, INFORMATION, AND RECOMMENDATIONS IN THIS
GUIDE ARE BELIEVED TO BE ACCURATE AND PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF PRODUCTS.
YEALINK(XIAMEN) NETWORK TECHNOLOGY CO., LTD. MAKES NO WARRANTY OF ANY KIND WITH
REGARD TO THIS GUIDE, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Yealink(Xiamen) Network Technology
CO., LTD. shall not be liable for errors contained herein nor for incidental or consequential damages in
connection with the furnishing, performance, or use of this guide.
Declaration of Conformity
Hereby, Yealink(Xiamen) Network Technology CO., LTD. declares that this phone is in conformity with
the essential requirements and other relevant provisions of the CE, FCC.
Statements of compliance can be obtained by contacting suppo[email protected].
CE Mark Warning
For SIP-T48G/T46G/T42G/T41P/T40P/T29G/T27P/T23P/T23G/T21(P) E2/T19(P) E2/CP860 IP phones:
This device is marked with the CE mark in compliance with EC Directives 2014/35/EU, 2014/30/EU.
For SIP VP-T49G IP phones:
This device is marked with the CE mark in compliance with RED Directive 2014/53/EU.

Part 15 FCC Rules
Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's
authority to operate the equipment.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
1. This device may not cause harmful interference, and
2. this device must accept any interference received, including interference that may cause undesired operation.
Industry Canada (IC)
This Class [B] digital apparatus complies with Canadian ICES-003 & ICRSS-247 Rules.
Operation is subject to the following conditions:
1. This device may not cause interference.
2. This device must accept any interference, including interference that may cause undesired operation of the device.
Privacy of communications may not be ensured when using this telephone.
Class B Digital Device or Peripheral
Note: This device is tested and complies with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance
with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to
correct the interference by one or more of the following measures:
1. Reorient or relocate the receiving antenna.
2. Increase the separation between the equipment and receiver.
3. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
4. Consult the dealer or an experience radio/TV technician for help.
WEEE Warning
To avoid the potential effects on the environment and human health as a result of the presence of
hazardous substances in electrical and electronic equipment, end users of electrical and electronic
equipment should understand the meaning of the crossed-out wheeled bin symbol. Do not dispose
of WEEE as unsorted municipal waste and have to collect such WEEE separately.
Customer Feedback
We are striving to improve our documentation quality and we appreciate your feedback. Email your
opinions and comments to [email protected].

GNU GPL INFORMATION
Yealink IP phone firmware contains third-party software under the GNU General Public License (GPL). Yealink uses
software under the specific terms of the GPL. Please refer to the GPL for the exact terms and conditions of the license.
The original GPL license, source code of components licensed under GPL and used in Yealink products can be
downloaded from Yealink web site:
http://www.yealink.com/GPLOpenSource.aspx?BaseInfoCateId=293&NewsCateId=293&CateId=293.

About This Guide
v
About This Guide
This guide is intended for administrators who need to properly configure, customize, manage,
and troubleshoot the IP phone system rather than end-users. It provides details on the
functionality and configuration of IP phones.
Many of the features described in this guide involve network settings, which could affect the IP
phone’s performance in the network. So an understanding of IP networking and a prior
knowledge of IP telephony concepts are necessary.
Documentations
This guide covers SIP VP-T49G, SIP-T48G, SIP-T46G, SIP-T42G, SIP-T41P, SIP-T40P, SIP-T29G,
SIP-T27P, SIP-T23P/G, SIP-T21(P) E2, SIP-T19(P) E2 and CP860 IP phones. The following related
documents are available:
Quick Start Guides, which describe how to assemble IP phones and configure the most
basic features available on IP phones.
User Guides, which describe the basic and advanced features available on IP phones.
Auto Provisioning Guide, which describes how to provision IP phones using the
configuration files.
Description of Configuration Parameters in CFG Files, which describes all configuration
parameters in configuration files.
<y0000000000xx>.cfg and <MAC>.cfg template configuration files.
IP Phones Deployment Guide for BroadSoft UC-One Environments, which describes how to
configure BroadSoft features on the BroadWorks web portal and IP phones.
For support or service, please contact your Yealink reseller or go to Yealink Technical Support
online: http://support.yealink.com/.
Conventions Used in Yealink Documentations
Yealink documentations contain a few typographic conventions.
You need to know the following basic typographic conventions to distinguish types of in-text
information:
Convention
Description
Bold
Highlights the web/phone user interface items such as menus,
menu selections, soft keys, or directory names when they are
involved in a procedure or user action (e.g., Click on

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/CP860 IP Phones
vi
Convention
Description
Settings->Upgrade.).
Also used to emphasize text (e.g., Important!).
Italics
Used to show the format of examples (e.g., http(s)://[IPv6
address] ), or to show the title of a section in the reference
documentations available on the Yealink Technical Support
Website (e.g., Triggering the IP phone to Perform the Auto
Provisioning ).
Blue Text
Used for cross references to other sections within this
documentation (e.g., refer to Ring Tones on page 813), for
hyperlinks to non-Yealink websites (e.g., RFC 3315) or for
hyperlinks to Yealink Technical Support website.
Blue Text in Italics
Used for hyperlinks to Yealink resources outside of this
documentation such as the Yealink documentations (e.g.,
Yealink_SIP-T2 Series_T19(P) E2_T4
Series_CP860_W56P_IP_Phones_Auto_Provisioning_Guide ).
In This Guide
The information detailed in this guide is applicable to firmware version 80. The firmware format
is like x.x.x.x.rom. The second x from left must be equal to 80 (e.g., the firmware version of
SIP-T23G IP phone: [phone].rom). This administrator guide includes the following chapters:
Chapter 1, “Product Overview” describes the SIP components and SIP IP phones.
Chapter 2, “Getting Started” describes how to install and connect IP phones, configuration
methods and resource files.
Chapter 3, “Configuring Basic Features” describes how to configure the basic features on IP
phones.
Chapter 4, “Configuring Advanced Features” describes how to configure the advanced
features on IP phones.
Chapter 5, “Configuring Audio Features” describes how to configure the audio features on
IP phones.
Chapter 6, “Configuring Video Features” describes how to configure the video features on
IP phones.
Chapter 7, “Configuring Security Features” describes how to configure the security features
on IP phones.
Chapter 8, “Troubleshooting” describes how to troubleshoot IP phones and provides some
common troubleshooting solutions.
Chapter 9, “Appendix” provides the glossary, reference information about IP phones
compliant with RFC 3261, SIP call flows and the sample configuration files.

About This Guide
vii
Summary of Changes
This section describes the changes to this guide for each release and guide version.
Changes for Release 80, Guide Version 80.132
The following sections are new for this version:
Local Conference on page 385
Output Resolution on page 500
Static NAT on page 724
Video Conferencing on page 758
Configuring Cloud Settings on page 760
Configuring H.323 Settings on page 775
Dual-Stream Protocol on page 798
H.323 Tunneling on page 802
H.460 Firewall Traversal on page 806
Intelligent Firewall Traversal on page 808
H.235 on page 809
Major updates have occurred to the following sections:
Physical Features of IP Phones on page 4
Verifying Startup on page 38
Reading Icons on page 39
Screen Saver on page 116
Power Saving on page 123
Configuring Cloud Settings on page 760
Call Display on page 166
Search Source in Dialing on page 261
Auto Answer on page 300
SIP IP Direct Auto Answer on page 307
Allow SIP IP Call on page 308
Automatic Call Distribution (ACD) on page 552
Reserved Ports on page 719
Audio Codecs on page 841
Jitter Buffer on page 863

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viii
Getting Information from Talk Statistics on page 953
Appendix D: Configuring DSS Key on page 987
Appendix F: Configurations Defined Never be Saved to <MAC>-local.cfg file on page 1007
Changes for Release 80, Guide Version 80.131
The following sections are new for this version:
Site Name on page 137
Idle Clock on page 138
Major updates have occurred to the following sections:
Reading Icons on page 39
SIP IP Direct Auto Answer on page 307
Allow SIP IP Call on page 308
DTMF on page 451
NAT Traversal on page 727
Rport on page 739
Audio Codecs on page 841
Video Codecs on page 876
Secure Real-Time Transport Protocol on page 908
Appendix F: Configurations Defined Never be Saved to <MAC>-local.cfg file on page 1007
Changes for Release 80, Guide Version 80.130
The following section is new for this version:
Power Saving on page 123
Major updates have occurred to the following sections:
Reading Icons on page 39
Screen Saver on page 116
NTP Time Serveron page 176
Key As Send on page 232
Call Park on page 431
DTMF on page 451
Ring Tones on page 813
Power and Startup Issues on page 978

About This Guide
ix
Appendix C: Trusted Certificates on page 986
Changes for Release 80, Guide Version 80.95
Major updates have occurred to the following sections:
Transport Layer Security on page 897
Appendix C: Trusted Certificates on page 986
Changes for Release 80, Guide Version 80.91
The following section is new for this version:
Onscreen Keyboard Input Method Customization on page 208
Major updates have occurred to the following sections:
Reading Icons on page 39
Obtaining Configuration Files and Resource Files on page 54
Configuring Transmission Methods of the Internet Port and PC Port on page 88
Wi-Fi on page 142
Customizing Softkey Layout Template File on page 223
Customizing a Local Contact File (Color Screen Phones) on page 274
Recent Call In Dialing on page 422
Bandwidth on page 493
External Monitor on page 499
Shared Call Appearance (SCA) on page 560
VQ-RTCPXR on page 695
Sending Volume on page 838
Audio Codecs on page 841
Video Codecs on page 876
Appendix F: Configurations Defined Never be Saved to <MAC>-local.cfg file on page 1007
Changes for Release 80, Guide Version 80.90
The following section is new for this version:
Exporting All the Diagnostic Files on page 960
Major updates have occurred to the following sections:
Expansion Module on page 17

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x
Connecting the Handset and Optional Headset (not Applicable to CP860 IP Phones) on
page 28
Connecting the Power and Network on page 30
Configuring Transmission Methods of the Internet Port and PC Port on page 88
Backlight on page 132
Incoming Intercom Calls on page 470
Busy Lamp Field (BLF) on page 528
Voice Quality Monitoring on page 692
Sending Volume on page 838
Capturing Packets on page 945
Changes for Release 80, Guide Version 80.82
Major updates have occurred to the following sections:
Verifying Startup on page 38
Reading Icons on page 39
Incoming Intercom Calls on page 470
Changes for Release 80, Guide Version 80.81
Documentations of the newly released SIP VP-T49G IP phones have also been added. The
following sections are new for this version:
Answer By Hand on page 492
Bandwidth on page 493
Screenshot and Recording on page 496
Reserved Ports on page 719
Configuring Video Features on page 867
Getting Information from Talk Statistics on page 953
Major updates have occurred to the following sections:
Connecting the IP Phones on page 19
Wi-Fi on page 142
Customizing Softkey Layout Template File on page 223
Customizing a Directory Template File on page 258
Voice Quality Monitoring on page 692
Quality of Service on page 712

About This Guide
xi
TR-069 Device Management on page 742
Audio Codecs on page 841
Capturing Packets on page 945
Troubleshooting Solutions on page 961
Appendix B: Time Zones on page 985
Appendix F: Configurations Defined Never be Saved to <MAC>-local.cfg file on page 1007
Changes for Release 80, Guide Version 80.80
This version is updated to incorporate CP860 IP phones. Documentations of the newly released
SIP-T40P IP phones have also been added. The following sections are new for this version:
Conventions Used in Yealink Documentations on page v
Wi-Fi on page 142
Major updates have occurred to the following sections:
Expansion Module on page 17
Bluetooth on page 139
Auto Answer on page 300
Session Timer on page 350
Dialog Info Call Pickup on page 419
Methods of Transmitting DTMF Digit on page 451
Busy Lamp Field (BLF) on page 528
Multicast Paging on page 582
Action URI on page 638
VPN on page 687
Quality of Service on page 712
NAT Traversal on page 727
IPv6 Support on page 748
Distinctive Ring Tones on page 818
Viewing Log Files on page 929
Troubleshooting Solutions on page 961
Appendix F: Configurations Defined Never be Saved to <MAC>-local.cfg file on page 1007

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/CP860 IP Phones
xii
Changes for Release 80, Guide Version 80.60
Documentations of the newly released SIP-T19(P) E2 IP phones have also been added. The
following sections are new for this version:
Ringing Timeout on page 474
Shared Call Appearance (SCA) on page 560
Bridge Lines Appearance (BLA) on page 572
Short Message Service (SMS) on page 581
Appendix F: Configurations Defined Never be Saved to <MAC>-local.cfg file on page 1007
Major updates have occurred to the following sections:
Documentations on page v
Expansion Module on page 15
Reading Icons on page 39
Configuration Files on page 50
Obtaining Configuration Files and Resource Files on page 54
Auto Answer on page 300
Do Not Disturb (DND) on page 325
Return Code When Refuse on page 342
Call Forward on page 360
LDAP on page 513
Action URL on page 619
Action URI on page 638
Server Redundancy on page 648
Changes for Release 80, Guide Version 80.21
The following sections are new for this version:
Expansion Module on page 15
Obtaining Configuration Files and Resource Files on page 54
DHCP Option on page 74
Bluetooth on page 139
Enable Page Tips on page 150
Label Length on page 152
Account Registration on page 153
Display Method on Dialing on page 170

About This Guide
xiii
Redial Tone on page 294
Ringer Device for Headset on page 296
SIP IP Direct Auto Answer on page 307
Allow SIP IP Call on page 308
Accept SIP Trust Server Only on page 310
Transfer Mode via Dsskey on page 393
Allow Trans Exist Call on page 395
Call Number Filter on page 430
Call Timeout on page 473
Send user=phone on page 474
SIP Send MAC on page 477
SIP Send Line on page 479
Reserve # in User Name on page 482
Password Dial on page 484
Unregister When Reboot on page 486
100 Reliable Retransmission on page 488
Reboot in Talking on page 490
Logon Wizard on page 615
Auto-Logout Time on page 884
Appendix E: Auto Provisioning Flowchart (Keep user personalized configuration settings)
on page 1006
Major updates have occurred to the following sections:
DHCP on page 70
Time and Date on page 175
Language on page 193
Input Method on page 203
Logo Customization on page 217
Softkey Layout on page 221
Dial Plan on page 237
Directory on page 258
Search Source in Dialing on page 261
Local Directory on page 271
SIP Session Timer on page 347
Call Hold on page 353

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/CP860 IP Phones
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DTMF on page 451
Remote Phone Book on page 506
VLAN on page 674
Network Address Translation on page 723
Comfort Noise Generation on page 861
Phone Lock on page 886
Troubleshooting Methods on page 929
Troubleshooting Solutions on page 961
Changes for Release 80, Guide Version 80.20
This version is updated to incorporate SIP-T48G IP phones. Documentations of the newly
released SIP-T27P and SIP-T21(P) E2 IP phones have also been added.
Major updates have occurred to the following sections:
Reading Icons on page 38
Configuration Files on page 50
Backlight on page 132
Time and Date on page 174
Auto Answer on page 300
Return Code When Refuse on page 342
DTMF on page 451
Phone Lock on page 886
Appendix B: Time Zones on page 985
Changes for Release 80, Guide Version 80.6
This version is updated to incorporate SIP-T46G, SIP-T42G, SIP-T41P and SIP-T29G IP phones.
The following sections are new for this version:
Wallpaper on page 112
Hide Features Access Code on page 550
Major updates have occurred to the following sections:
DHCP on page 70
Call Display on page 166
Input Method on page 203
BLF List on page 540

About This Guide
xv
IPv6 Support on page 748
Viewing Log Files on page 929

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/CP860 IP Phones
xvi

Table of Contents
xvii
Table of Contents
About This Guide ........................................................................... v
Documentations ......................................................................................................................................................................... v
Conventions Used in Yealink Documentations ............................................................................................................. v
In This Guide ...............................................................................................................................................................................vi
Summary of Changes .............................................................................................................................................................vii
Changes for Release 80, Guide Version 80.132 .................................................................................................vii
Changes for Release 80, Guide Version 80.131 ................................................................................................viii
Changes for Release 80, Guide Version 80.130 ................................................................................................viii
Changes for Release 80, Guide Version 80.95..................................................................................................... ix
Changes for Release 80, Guide Version 80.91..................................................................................................... ix
Changes for Release 80, Guide Version 80.90..................................................................................................... ix
Changes for Release 80, Guide Version 80.82...................................................................................................... x
Changes for Release 80, Guide Version 80.81...................................................................................................... x
Changes for Release 80, Guide Version 80.80..................................................................................................... xi
Changes for Release 80, Guide Version 80.60....................................................................................................xii
Changes for Release 80, Guide Version 80.21....................................................................................................xii
Changes for Release 80, Guide Version 80.20...................................................................................................xiv
Changes for Release 80, Guide Version 80.6 .....................................................................................................xiv
Table of Contents.......................................................................xvii
Product Overview ..........................................................................1
VoIP Principle...............................................................................................................................................................................1
SIP Components .........................................................................................................................................................................2
SIP IP Phone Models.................................................................................................................................................................3
Physical Features of IP Phones....................................................................................................................................4
Key Features of IP Phones.......................................................................................................................................... 15
Expansion Module .................................................................................................................................................................. 17
Getting Started.............................................................................19
Connecting the IP Phones ................................................................................................................................................... 19
Attaching the Stand and the Optional Wall Mount Bracket (not Applicable to CP860 IP Phones)
............................................................................................................................................................................................... 20
Inserting the Camera (Only Applicable to SIP VP-T49G IP Phones)......................................................... 28
Connecting the Handset and Optional Headset (not Applicable to CP860 IP Phones)................... 28
Connecting the Power and Network ..................................................................................................................... 30

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Connecting the Optional Extension Microphones (Only Applicable to CP860 IP Phones) ............ 33
Connecting the Optional USB Flash Drive (Only Applicable to SIP VP-T49G and CP860 IP Phones)
............................................................................................................................................................................................... 33
Connecting the Optional PC or Mobile Device (Only Applicable to CP860 IP Phones)................... 34
Connecting the Optional External Monitor (Only Applicable to SIP VP-T49G IP Phones) ............. 35
Initialization Process Overview.......................................................................................................................................... 36
Verifying Startup ..................................................................................................................................................................... 38
Reading Icons ........................................................................................................................................................................... 39
Configuration Methods ........................................................................................................................................................ 50
Phone User Interface.................................................................................................................................................... 50
Web User Interface ....................................................................................................................................................... 50
Configuration Files ........................................................................................................................................................ 50
Obtaining Configuration Files and Resource Files .................................................................................................... 54
Keep User Personalized Settings...................................................................................................................................... 57
Configuration Parameters.......................................................................................................................................... 57
Scenario A Keep user personalized configuration settings ......................................................................... 58
Scenario B Clear user personalized configuration settings.......................................................................... 62
Scenario C Keep user personalized settings after factory reset................................................................. 64
Scenario D Import or export the local configuration file.............................................................................. 65
Provisioning Server................................................................................................................................................................. 67
Supported Provisioning Protocols.......................................................................................................................... 67
Setting up the Provisioning Server......................................................................................................................... 68
Deploying Phones from the Provisioning Server ............................................................................................. 68
Configuring Basic Network Parameters......................................................................................................................... 70
DHCP................................................................................................................................................................................... 70
DHCP Option................................................................................................................................................................... 74
Configuring Network Parameters Manually....................................................................................................... 80
PPPoE.................................................................................................................................................................................. 85
Configuring Transmission Methods of the Internet Port and PC Port.................................................... 88
Configuring PC Port Mode ........................................................................................................................................ 92
Upgrading Firmware.............................................................................................................................................................. 94
Upgrading Firmware via Web User Interface..................................................................................................... 95
Upgrading Firmware from the Provisioning Server......................................................................................... 96
Configuring Basic Features .......................................................101
Power Indicator LED.............................................................................................................................................................103
Notification Popups .............................................................................................................................................................108
Contrast.....................................................................................................................................................................................111
Wallpaper .................................................................................................................................................................................113
Screen Saver............................................................................................................................................................................116
Power Saving ..........................................................................................................................................................................123
Backlight ...................................................................................................................................................................................132
Site Name.................................................................................................................................................................................137
Idle Clock ..................................................................................................................................................................................138

Table of Contents
xix
Bluetooth..................................................................................................................................................................................139
Wi-Fi ...........................................................................................................................................................................................142
Enable Page Tips ...................................................................................................................................................................150
Label Length............................................................................................................................................................................152
Account Registration ...........................................................................................................................................................153
Call Display ..............................................................................................................................................................................166
Display Method on Dialing ...............................................................................................................................................170
Web Server Type ...................................................................................................................................................................172
Time and Date ........................................................................................................................................................................175
NTP Time Server...........................................................................................................................................................176
Time and Date Settings.............................................................................................................................................181
Daylight Saving Time .................................................................................................................................................185
Language..................................................................................................................................................................................193
Loading Language Packs..........................................................................................................................................194
Specifying the Language to Use............................................................................................................................201
Input Method..........................................................................................................................................................................203
Keypad Input Method Customization.................................................................................................................203
Onscreen Keyboard Input Method Customization........................................................................................208
Specifying the Default Input Method..................................................................................................................215
Logo Customization.............................................................................................................................................................217
Customizing a Logo Template File.......................................................................................................................217
Configuring the Logo Shown on the Idle Screen...........................................................................................218
Softkey Layout........................................................................................................................................................................221
Customizing Softkey Layout Template File.......................................................................................................223
Key As Send.............................................................................................................................................................................232
Dial Plan ....................................................................................................................................................................................237
Replace Rule ..................................................................................................................................................................238
Dial-now ..........................................................................................................................................................................243
Area Code .......................................................................................................................................................................248
Block Out.........................................................................................................................................................................251
Hotline .......................................................................................................................................................................................253
Off Hook Hot Line Dialing.................................................................................................................................................256
Directory ...................................................................................................................................................................................258
Customizing a Directory Template File ..............................................................................................................258
Search Source in Dialing ....................................................................................................................................................261
Customizing a Super Search Template File ......................................................................................................261
Save Call Log...........................................................................................................................................................................265
Call List Show Number........................................................................................................................................................267
Missed Call Log......................................................................................................................................................................269
Local Directory .......................................................................................................................................................................271
Customizing a Local Contact File..........................................................................................................................271
Live Dialpad .............................................................................................................................................................................288
Call Waiting .............................................................................................................................................................................290
Redial Tone..............................................................................................................................................................................294

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Ringer Device for Headset ................................................................................................................................................296
Auto Redial ..............................................................................................................................................................................298
Auto Answer............................................................................................................................................................................300
SIP IP Direct Auto Answer..................................................................................................................................................307
Allow SIP IP Call .....................................................................................................................................................................308
Accept SIP Trust Server Only............................................................................................................................................310
Call Completion .....................................................................................................................................................................312
Anonymous Call.....................................................................................................................................................................316
Anonymous Call Rejection ................................................................................................................................................320
Do Not Disturb (DND).........................................................................................................................................................325
Busy Tone Delay ....................................................................................................................................................................340
Return Code When Refuse................................................................................................................................................342
Early Media ..............................................................................................................................................................................344
180 Ring Workaround.........................................................................................................................................................344
Use Outbound Proxy in Dialog .......................................................................................................................................345
SIP Session Timer ..................................................................................................................................................................347
Session Timer..........................................................................................................................................................................350
Call Hold ...................................................................................................................................................................................353
Music on Hold...............................................................................................................................................................357
Call Forward.............................................................................................................................................................................360
Call Transfer.............................................................................................................................................................................382
Local Conference...................................................................................................................................................................385
Network Conference............................................................................................................................................................387
Feature Key Synchronization............................................................................................................................................389
Transfer on Conference Hang Up ..................................................................................................................................391
Transfer Mode via Dsskey..................................................................................................................................................393
Allow Trans Exist Call ...........................................................................................................................................................395
Directed Call Pickup.............................................................................................................................................................396
Group Call Pickup .................................................................................................................................................................408
Dialog Info Call Pickup........................................................................................................................................................419
Recent Call In Dialing ..........................................................................................................................................................422
ReCall .........................................................................................................................................................................................424
Call Number Filter.................................................................................................................................................................430
Call Park ....................................................................................................................................................................................431
Calling Line Identification Presentation.......................................................................................................................443
Connected Line Identification Presentation...............................................................................................................448
DTMF..........................................................................................................................................................................................451
Methods of Transmitting DTMF Digit.................................................................................................................451
Suppress DTMF Display ............................................................................................................................................457
Transfer via DTMF........................................................................................................................................................459
Play Local DTMF Tone ...............................................................................................................................................461
Allow Mute...............................................................................................................................................................................463
Intercom....................................................................................................................................................................................464
Outgoing Intercom Calls ..........................................................................................................................................464