Yealink Yealink SIP-T46G Service manual

SIP T46G IP
Phone Administrator Guide

Copyright © 2013 YEALINK NETWORK TECHNOLOGY
Copyright © 2013 Yealink 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 Network Technology CO., LTD. Under the law, reproducing includes
translating into another language or format.
When this publication is made available on media, Yealink Network Technology CO., LTD. gives
its consent to downloading and printing copies of the content provided in this file only for private
use and not for redistribution. No parts of this publication may be subject to alteration,
modification or commercial use. Yealink Network Technology CO., LTD. will not be liable for any
damages arising from use of an illegally modified or altered publication.
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 BUT ARE PRESENTED
WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL
RESPONSIBILITY FOR THEIR APPLICATION OF PRODUCTS.
YEALINK NETWORK TECHNOLOGY CO., LTD. MAKES NO WARRANTY OF ANY KIND WITH
REGARD TO THIS GUIDE, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Yealink 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.
Hereby, Yealink Network Technology CO., LTD. declares that this phone is in conformity
with the essential requirements and other relevant provisions of the CE, FCC.
This device is marked with the CE mark in compliance with EC Directives 2006/95/EC and 2004/108/EC.
This device is compliant 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.

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.
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.

About This Guide
v
The guide is considered to be an administration-level version, which is intended for
administrators who need to properly configure, customize, manage, and troubleshoot
the IP phone systems rather than the end-users of IP phones. It provides details on the
functionality and configuration of the IP phones.
Many of the features are described in this guide involving the network settings, which
could affect the IP phones’performance in the network. So an understanding of the IP
networking and prior knowledge of IP telephony concepts are necessary.
The following related documents for the SIP-T46G IP phones are available:
Quick Installation Guide, which describes how to assemble IP phones.
Quick Reference Guide, which describes the most basic features available on IP
phones.
User Guide, which describes the basic and advanced features available on IP
phones.
Auto Provisioning User Guide, which describes how to auto provision IP phones
using the configuration files.
Configuration Conversion Tool User Guide, which describes how to convert and
encrypt the configuration files using the Configuration Conversion Tool.
<y000000000028>.cfg and <MAC>.cfg template configuration files.
IP Phones Deployment Guide for BroadWorks Environments, which describes how
to configure the 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 at http://www.yealink.com/Support.aspx.
The information detailed in this guide is applicable to the firmware version 71. The
firmware format likes x.x.x.x.rom (e.g., 28.71.0.50.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 the IP phones
and the configuration methods.

Administrator’s Guide for SIP-T46G IP Phone
vi
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 Security Features‖describes how to configure the security
features on IP phones.
Chapter 7, ―Upgrading the Firmware‖describes how to upgrade the firmware of
the IP phones.
Chapter 8, ―Resource Files‖describes the resource files that can be downloaded
by the IP phones.
Chapter 9, ―Troubleshooting‖describes how to troubleshoot the IP phones and
provides some common troubleshooting solutions.
Chapter 10, ―Appendix‖provides the glossary, reference information about the IP
phones compliant with RFC 3261, SIP call flows and the sample configuration files.

Table of Contents
vii
About This Guide ...................................................................... v
Documentations...............................................................................................................................v
In This Guide ....................................................................................................................................v
Table of Contents ....................................................................vii
Product Overview..................................................................... 1
VoIP Principle....................................................................................................................................1
SIP Components...............................................................................................................................2
Introducing the SIP-T46G IP Phones ...............................................................................................3
Physical Features of the SIP-T46G IP Phones ..........................................................................3
Key Features of the SIP-T46G IP Phones..................................................................................5
Getting Started......................................................................... 7
Connecting the IP Phones ...............................................................................................................7
Initialization Process Overview ....................................................................................................10
Verifying Startup ............................................................................................................................11
Configuration Methods.................................................................................................................11
Phone User Interface..............................................................................................................12
Web User Interface ................................................................................................................12
Configuration Files..................................................................................................................12
Reading Icons ................................................................................................................................13
Configuring Basic Network Parameters ......................................................................................15
DHCP .......................................................................................................................................15
Configuring Network Parameters Manually ........................................................................17
PPPoE .......................................................................................................................................20
Configuring Internet and PC Port Negotiation.....................................................................21
Creating Dial Plan .........................................................................................................................23
Replace Rule ...........................................................................................................................25
Dial-now ..................................................................................................................................26
Area Code...............................................................................................................................27
Block Out .................................................................................................................................29
Configuring Basic Features .................................................... 31
Wallpaper.......................................................................................................................................32
Backlight......................................................................................................................................... 34

Administrator’s Guide for SIP-T46G IP Phone
viii
User Password ...............................................................................................................................36
Administrator Password ................................................................................................................37
Phone Lock .....................................................................................................................................38
Date and Time ...............................................................................................................................40
Language .......................................................................................................................................45
Loading Language Packs ...................................................................................................... 46
Specifying the Language to Use...........................................................................................46
Softkey Layout................................................................................................................................48
Key as Send ...................................................................................................................................51
Hotline ............................................................................................................................................53
Call Log...........................................................................................................................................54
Missed Call Log .............................................................................................................................55
Local Directory ...............................................................................................................................56
Live Dialpad...................................................................................................................................59
Call Waiting.................................................................................................................................... 60
Auto Redial.....................................................................................................................................62
Auto Answer...................................................................................................................................63
Call Completion.............................................................................................................................64
Anonymous Call............................................................................................................................. 66
Anonymous Call Rejection ............................................................................................................67
Do Not Disturb................................................................................................................................69
Busy Tone Delay.............................................................................................................................73
Return Code When Refuse ............................................................................................................74
Early Media.................................................................................................................................... 75
180 Ring Workaround ....................................................................................................................75
Use Outbound Proxy in Dialog.....................................................................................................76
SIP Session Timer ........................................................................................................................... 77
Session Timer .................................................................................................................................79
Call Hold.........................................................................................................................................80
Call Forward ..................................................................................................................................82
Call Transfer ...................................................................................................................................88
Network Conference .....................................................................................................................89
Transfer on Conference Hang Up ................................................................................................90
Directed Call Pickup...................................................................................................................... 91
Group Call Pickup..........................................................................................................................94
Dialog-Info Call Pickup..................................................................................................................97
Call Return ......................................................................................................................................99
Call Park .......................................................................................................................................100
Web Server Type..........................................................................................................................101
Calling Line Identification Presentation..................................................................................... 103
Connected Line Identification Presentation ..............................................................................104
DTMF.............................................................................................................................................105
Suppress DTMF Display .............................................................................................................. 108
Transfer via DTMF ........................................................................................................................109

Table of Contents
ix
Intercom........................................................................................................................................110
Outgoing Intercom Calls...................................................................................................... 110
Incoming Intercom Calls ...................................................................................................... 111
Configuring Advanced Features...........................................115
Distinctive Ring Tones ..................................................................................................................115
Tones .............................................................................................................................................119
Remote Phonebook .....................................................................................................................121
LDAP..............................................................................................................................................123
Busy Lamp Field...........................................................................................................................126
Music on Hold .............................................................................................................................. 129
Automatic Call Distribution .........................................................................................................131
Message Waiting Indicator ........................................................................................................133
Multicast Paging ..........................................................................................................................135
Sending RTP Stream.............................................................................................................135
Receiving RTP Stream ..........................................................................................................137
Call Recording .............................................................................................................................140
Hot Desking..................................................................................................................................143
Action URL ....................................................................................................................................145
Action URI.....................................................................................................................................148
Server Redundancy.....................................................................................................................150
LLDP...............................................................................................................................................155
VLAN .............................................................................................................................................158
VPN................................................................................................................................................161
Quality of Service ........................................................................................................................163
Network Address Translation .....................................................................................................166
SNMP ............................................................................................................................................168
802.1X Authentication .................................................................................................................170
TR-069 Device Management ......................................................................................................174
IPv6 Support ................................................................................................................................. 176
Configuring Audio Features ..................................................181
Headset Prior ...............................................................................................................................181
Dual Headset...............................................................................................................................182
Audio Codecs ..............................................................................................................................183
Acoustic Clarity Technology........................................................................................................187
Acoustic Echo Cancellation ................................................................................................. 187
Voice Activity Detection .......................................................................................................188
Comfort Noise Generation ..................................................................................................189
Jitter Buffer ............................................................................................................................190
Configuring Security Features...............................................193

Administrator’s Guide for SIP-T46G IP Phone
x
Transport Layer Security.............................................................................................................. 193
Secure Real-Time Transport Protocol..........................................................................................199
Encrypting Configuration Files ...................................................................................................201
Upgrading the Firmware.......................................................205
Resource Files........................................................................209
Replace Rule Template ...............................................................................................................209
Dial-now Template.......................................................................................................................210
Softkey Layout Template.............................................................................................................211
Local Contact File ........................................................................................................................213
Remote XML Phonebook.............................................................................................................214
Specifying the Access URL of Resource Files ............................................................................215
Troubleshooting.....................................................................217
Troubleshooting Methods ...........................................................................................................217
Viewing Log Files..................................................................................................................217
Capturing Packets ................................................................................................................219
Enabling the Watch Dog Feature........................................................................................220
Getting Information from Status Indicators........................................................................221
Analyzing Configuration Files .............................................................................................221
Troubleshooting Solutions ...........................................................................................................222
Why is the phone LCD screen blank? .................................................................................222
Why does the IP phone not get an IP address?.................................................................222
How do I find the basic information of the IP phone?.......................................................223
Why does the IP phone not upgrade the firmware successfully?....................................223
Why does the IP phone not display time and date correctly?.........................................223
Why do I get poor audio during a call? .............................................................................223
What is the difference between a remote phonebook and a local phonebook? ......... 224
What is the difference between user name, register name and display name? ..........224
Is there a SIP message that can make the IP phone reboot? ..........................................224
What can I do if I forget the administrator password? .....................................................224
How to increase the volume on Speaker & on Headset? ................................................225
What is auto provisioning? ..................................................................................................225
What is PnP? ..........................................................................................................................225
Why does the IP phone not apply the configuration?.......................................................225
What do ―on code‖ and ―off code‖ mean? .......................................................................225
How to solve the IP conflict problem? ................................................................................ 226
How to reset your phone to factory configurations?.........................................................226
Appendix ...............................................................................227
Appendix A: Glossary.................................................................................................................227

Table of Contents
xi
Appendix B: Time Zones.............................................................................................................229
Appendix C: Configuration Parameters ....................................................................................232
Setting Parameters in Configuration Files.......................................................................... 232
Basic and Advanced Parameters.......................................................................................232
Audio Feature Parameters................................................................................................... 332
Security Feature Parameters ...............................................................................................339
Upgrading the Firmware .....................................................................................................343
Resource Files .......................................................................................................................345
Troubleshooting ....................................................................................................................350
Configuring DSS Key ............................................................................................................ 351
Appendix D: SIP (Session Initiation Protocol)............................................................................364
RFC and Internet Draft Support ..........................................................................................364
SIP Request............................................................................................................................366
SIP Header ............................................................................................................................ 366
SIP Responses .......................................................................................................................368
SIP Session Description Protocol (SDP) Usage ..................................................................370
Appendix E: SIP Call Flows .........................................................................................................371
Successful Call Setup and Disconnect ...............................................................................372
Unsuccessful Call Setup—Called User is Busy ..................................................................374
Unsuccessful Call Setup—Called User Does Not Answer ................................................378
Successful Call Setup and Call Hold.................................................................................. 381
Successful Call Setup and Call Waiting .............................................................................383
Call Transfer without Consultation ......................................................................................388
Call Transfer with Consultation............................................................................................392
Always Call Forward............................................................................................................398
Busy Call Forward ................................................................................................................401
No Answer Call Forward .....................................................................................................404
Call Conference.................................................................................................................... 407
Appendix F: Sample Configuration File ....................................................................................412
Index ......................................................................................419

Administrator’s Guide for SIP-T46G IP Phone
xii

Product Overview
1
This chapter contains the following information about the SIP-T46G IP phones:
VoIP Principle
SIP Components
Introducing the SIP-T46G IP Phones
VoIP
VoIP (Voice over Internet Protocol) is a technology using the Internet Protocol instead of
traditional Public Switch Telephone Network (PSTN) technology for voice
communications.
It is a family of technologies, methodologies, communication protocols, and
transmission techniques for the delivery of voice communications and multimedia
sessions over IP networks. The H.323 and Session Initiation Protocol (SIP) are two
popular VoIP protocols that are found in widespread implement.
H.323
H.323 is a recommendation from the ITU Telecommunication Standardization Sector
(ITU-T) that defines the protocols to provide audio-visual communication sessions on
any packet network. The H.323 standard addresses call signaling and control,
multimedia transport and control, and bandwidth control for point-to-point and
multi-point conferences.
It is widely implemented by voice and video conference equipment manufacturers, is
used within various Internet real-time applications such as GnuGK and NetMeeting and
is widely deployed worldwide by service providers and enterprises for both voice and
video services over IP networks.
SIP
SIP (Session Initiation Protocol) is the Internet Engineering Task Force’s (IETF’s) standard
for multimedia conferencing over IP. It is an ASCII-based, application-layer control
protocol (defined in RFC 3261) that can be used to establish, maintain, and terminate
calls between two or more endpoints. Like other VoIP protocols, SIP is designed to
address the functions of signaling and session management within a packet telephony
network. Signaling allows call information to be carried across network boundaries.
Session management provides the ability to control the attributes of an end-to-end call.

Administrator’s Guide for SIP-T46G IP Phone
2
SIP provides the capabilities to:
Determine the location of the target endpoint -- SIP supports address resolution,
name mapping, and call redirection.
Determine the media capabilities of the target endpoint -- Via Session Description
Protocol (SDP), SIP determines the ―lowest level‖ of common services between the
endpoints. Conferences are established using only the media capabilities that can
be supported by all endpoints.
Determine the availability of the target endpoint -- A call cannot be completed
because the target endpoint is unavailable, SIP determines whether the called
party is already on the IP phone or did not answer in the allotted number of rings. It
then returns a message indicating why the target endpoint was unavailable.
Establish a session between the origin and target endpoint -- The call can be
completed, SIP establishes a session between the endpoints. SIP also supports
mid-call changes, such as the addition of another endpoint to the conference or the
changing of a media characteristic or codec.
Handle the transfer and termination of calls -- SIP supports the transfer of calls from
one endpoint to another. During a call transfer, SIP simply establishes a session
between the transferee and a new endpoint (specified by the transferring party)
and terminates the session between the transferee and the transferring party. At
the end of a call, SIP terminates the sessions between all parties.
SIP is a peer-to-peer protocol. The peers in a session are called User Agents (UAs). A
user agent can function as one of the following roles:
User Agent Client (UAC) -- A client application that initiates the SIP request.
User Agent Server (UAS) -- A server application that contacts the user when a SIP
request is received and that returns a response on behalf of the user.
User Agent Client (UAC)
The UAC is an application that initiates up to six feasible SIP requests to the UAS. The six
requests issued by the UAC are: INVITE, ACK, OPTIONS, BYE, CANCEL and REGISTER.
When the SIP session is being initiated by the UAC SIP component, the UAC determines
the information essential for the request, which is the protocol, the port and the IP
address of the UAS to which the request is being sent. This information can be dynamic
and this will make it challenging to put through a firewall. For this reason it may be
recommended to open the specific application type on the firewall. The UAC is also
capable of using the information in the request URI to establish the course of the SIP
request to its destination, as the request URI always specifies the host which is essential.
The port and protocol are not always specified by the request URI. Thus if the request
does not specify a port or protocol, a default port or protocol is contacted. Using this

Product Overview
3
method may be the preferred measure when not using an application layer firewall,
application layer firewalls like to know what applications are flowing though which
ports and it is possible using content types of other applications other than the one you
are trying to let through which has been denied.
User agent server (UAS)
UAS is the server that hosts the application responsible for receiving the SIP requests
from a UAC, and on reception returns a response to the request back to the UAC. The
UAS may issue multiple responses to the UAC, not necessarily a single response.
Communication between UAC and UAS is client/server and peer-to–peer.
Typically, a SIP endpoint is capable of functioning as both a UAC and a UAS, but it
functions only as one or the other per transaction. Whether the endpoint functions as a
UAC or a UAS depends on the UA that initiates the request.
The SIP-T46G IP phones are the endpoints in the overall network topology, which are
designed to interoperate with other compatible equipments including application
servers, media servers, internet-working gateways, voice bridges, and other
endpoints. The SIP-T46G IP phones are characterized by a large number of functions,
which simplify business communication with a high standard of security and can work
seamlessly with a large number of SIP PBXs.
The SIP-T46G IP phones provide a powerful and flexible IP communication solution for
Ethernet TCP/IP networks, delivering excellent voice quality. The high-resolution
graphic display supplies content in multiple languages for system status, call history
and directory access. The SIP-T46G IP phones also support advanced functionalities,
including LDAP, Busy Lamp Field, Sever Redundancy and Network Conference.
The SIP-T46G IP phones comply with the SIP standard (RFC 3261), and they can only be
used within a network that supports this type of phone.
For successfully operating as SIP endpoints in your network, the SIP-T46G IP phones must
meet the following requirements:
A working IP network is established.
Routers are configured for VoIP.
VoIP gateways are configured for SIP.
The latest (or compatible) firmware of the SIP-T46G IP phones is available.
A call server is active and configured to receive and send SIP messages.
This section lists the available physical features of the SIP-T46G IP phones.

Administrator’s Guide for SIP-T46G IP Phone
4
SIP-T46G
Physical Features:
-4.3‖ TFT-LCD, 480 x 272 pixel, 16.7M colors
-6 VoIP accounts
-HD Voice: HD Codec, HD Handset, HD Speaker
-40 keys including 13 programmable keys
-1xRJ9 (4P4C) handset port
-1xRJ9 (4P4C) headset port
-2xRJ45 10/100/1000M Ethernet ports
-1XRJ12 (6P6C) expansion module port
-14 LEDs: 1xpower, 10xline, 1xmute, 1xheadset, 1xspeakerphone
-Power adapter: AC 100~240V input and DC 5V/2A output
-Power over Ethernet (IEEE 802.3af)
-A USB port
-Bluetooth

Product Overview
5
In addition to the physical features introduced above, the SIP-T46G IP phones also
support the following key features when running the latest firmware:
Phone Features
-Call Options: emergency call, call waiting, call hold, call mute, call forward,
call transfer, call pickup, 3-way conference.
-Basic Features: DND, phone lock, auto redial, live dialpad, dial plan, hotline,
caller identity, auto answer.
-Advanced Features: BLF, server redundancy, distinctive ring tones, remote
phonebook, SNMP, LDAP, 802.1x authentication.
Codecs and Voice Features
-Wideband codec: G.722
-Narrowband codec: G.711, G.723.1, G.726, G.729AB, GSM
-VAD, CNG, AEC, PLC, AJB, AGC
-Full-duplex speakerphone with AEC
Network Features
-SIP v1 (RFC2543), v2 (RFC3261)
-Supports IPv4/IPv6
-NAT Traversal: STUN mode
-DTMF: INBAND, RFC2833, SIP INFO
-Proxy mode and peer-to-peer SIP link mode
-IP assignment: Static/DHCP/PPPoE
-TFTP/DHCP/PPPoE client
-HTTP/HTTPS server
-DNS client
-NAT/DHCP server
Management
-FTP/TFTP/HTTP/PnP auto-provision
-Configuration: browser/phone/auto-provision
-Direct IP call without SIP proxy
-Dial number via SIP server
-Dial URL via SIP server
Security
-HTTPS (server/client)

Administrator’s Guide for SIP-T46G IP Phone
6
-SRTP (RFC3711)
-Transport Layer Security (TLS)
-VLAN (802.1q), QoS
-Digest authentication using MD5/MD5-sess
-Secure configuration file via AES encryption
-Phone lock for personal privacy protection
-Admin/User configuration mode

Getting Started
7
This chapter introduces the initialization of the SIP-T46G IP phones, the installing and
connecting process of the IP phones which you need to follow.
This chapter provides the following major sections:
Connecting the IP Phones
Initialization Process Overview
Verifying Startup
Configuration Methods
Reading Icons
Configuring Basic Network Parameters
Creating Dial Plan
This section introduces how to install SIP-T46G IP phones with the components in the
packaging contents.
1. Attach the stand
2. Connect the handset and optional headset
3. Connect the network and power
Note
The headset is not provided in the packaging contents.