Yealink T54S Service manual

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Copyright
Copyright © 2018 YEALINK(XIAMEN) NETWORK TECHNOLOGY
Copyright © 2018 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
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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.
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LTD, which are registered legally in China, the United States, EU (European Union) and other countries.
All other trademarks belong to their respective owners. Without Yealink’s express written permission,
recipient shall not reproduce or transmit any portion hereof in any form or by any means, with any
purpose other than personal use.
Warranty
(1) 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.
(2) Disclaimer
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REGARD TO THIS GUIDE, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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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.
(3) Limitation of Liability
Yealink and/or its respective suppliers are not responsible for the suitability of the information contained
in this document for any reason. The information is provided “as is”, and Yealink does not provide any

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warranty and is subject to change without notice. All risks other than risks caused by use of the
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limited to loss of business profit, business interruption or loss of business information), shall not be liable
for these damages.
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This End User License Agreement ("EULA") is a legal agreement between you and Yealink. By installing,
copying or otherwise using the Products, you: (1) agree to be bounded by the terms of this EULA, (2) you
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Patent Information
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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/onepage_83.html.

Introduction
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Introduction
Yealink administrator guide provides general guidance on setting up phone network, provisioning and
managing phones.
This guide is not intended for end users, but for administrators with experience in networking who
understand the basic of open SIP networks and VoIP endpoint environments.
As an administrator, you can do the following with this guide:
Set up a VoIP network and provisioning server.
Provision the phone with features and settings.
Troubleshoot, update and maintain phones.
The information detailed in this guide is applicable to the following Yealink devices running firmware
version 83 or higher:
T5 series IP phones, including T54S and T52S.
T4 series IP phones, including T48S/G, T46S/G, T42S/G, T41S/P and T40P/G.
T2 series IP phones, including T29G, T27P/G, T23P/G, T21(P) E2 and T19(P) E2.
Expansion modules, including EXP20, EXP40 and EXP50.
Read the Yealink Products Regulatory Notices guide for all regulatory and safety guidance.
Related Documentations
The following related documents are available:
Quick Start Guides, describe how to assemble IP phones and configure the most basic features
available on IP phones.
User Guides, describe how to configure and use the basic and advanced features available on IP
phones via phone user interface or via web user interface.
Auto Provisioning Guide, describes how to provision IP phones using the boot file and configuration
files.
The Auto Provisioning Guide is to serve as a basic guidance for provisioning Yealink IP phones with
a provisioning server. If you are novice, this guide is helpful for you.
Using features integrated with Broadsoft UC-One, refer to the following two guides to have a better
knowledge of BroadSoft features.
IP Phones Deployment Guide for BroadSoft UC-One Environments, describes how to configure
BroadSoft features on the BroadWorks web portal and IP phones.
IP Phone Features Integrated with BroadSoft UC-One User Guide, describes how to configure and

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series IP Phones
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use IP phone features integrated with BroadSoft UC-One on Yealink IP phones.
For support or service, please contact your Yealink reseller or go to Yealink Technical Support online:
http://support.yealink.com/.
Recommended References
For more information on configuring and administering other Yealink products not included in this guide,
refer to product support page at Yealink Technical Support.
To access the latest Release Notes or other guides for Yealink IP phones, refer to the Document
Download page for your phone at Yealink Technical Support.
If you want to find Request for Comments (RFC) documents, type http://www.ietf.org/rfc/rfcNNNN.txt
(NNNN is the RFC number) into the location field of your browser.
For other references, look for the hyperlink or web info throughout this administrator guide.
Typographic and Writing Conventions
Yealink documentations contain a few typographic conventions and writing conventions.
You need to know the following basic typographic conventions to distinguish types of in-text
information:
Convention
Description
Bold
Highlight 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 (for example, click Settings->Upgrade.).
Also used to emphasize text (for example, Important!).
Italics
Used to emphasize text, to show the example values or inputs (format of
examples: http(s)://[IPv6 address] ).
Blue Text
Used for cross references to other topics related to this topic (for example,
Ring Tones), for hyperlinks to external sites and documents, for example, RFC
3315 or Yealink_SIP_IP_Phones_Auto_Provisioning_Guide.
You also need to know the following writing conventions to distinguish conditional information:
Convention
Description
<>
Indicate that you must enter information specific to phone or network. For
example, when you see <MAC>, enter your phone’s 12-digit MAC address. If
you see <phoneIPAddress>, enter your phone’s IP address.

Introduction
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Convention
Description
->
Indicate that you need to select an item from a menu. For example,
Settings->Basic Settings indicates that you need to select Basic Settings
from the Settings menu.

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series IP Phones
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Table of Contents
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Table of Contents
Introduction.....................................................................................i
Related Documentations ......................................................................................................................................................... i
Recommended References .................................................................................................................................................... ii
Typographic and Writing Conventions............................................................................................................................. ii
Table of Contents........................................................................... v
Getting Started...............................................................................1
Requirements...............................................................................................................................................................................1
Yealink IP Phones in a Network ...........................................................................................................................................1
Initialization Process Overview.............................................................................................................................................2
Loading the ROM File .....................................................................................................................................................3
Configuring the VLAN ....................................................................................................................................................3
Querying the DHCP (Dynamic Host Configuration Protocol) Server..........................................................3
Contacting the Provisioning Server ..........................................................................................................................3
Updating Firmware ..........................................................................................................................................................4
Downloading the Resource Files................................................................................................................................4
Verifying Startup ........................................................................................................................................................................4
Phone Network ..............................................................................5
IPv4 and IPv6 Network Settings...........................................................................................................................................5
IP Addressing Mode Configuration ..........................................................................................................................6
IPv4 Configuration............................................................................................................................................................7
IPv6 Configuration......................................................................................................................................................... 10
DHCP Option for IPv4 ........................................................................................................................................................... 14
Supported DHCP Option for IPv4........................................................................................................................... 14
DHCP Option 66, Option 43 and Custom Option............................................................................................ 15
DHCP Option 42, Option 2 and Option 100....................................................................................................... 16
DHCP Option 12............................................................................................................................................................. 16
DHCP Option 120 .......................................................................................................................................................... 17
DHCP Option 60............................................................................................................................................................. 18
DHCP Option for IPv6 ........................................................................................................................................................... 19
Supported DHCP Option for IPv6........................................................................................................................... 19
DHCP Option 59 and Custom Option................................................................................................................... 19
VLAN............................................................................................................................................................................................. 19
LLDP Configuration....................................................................................................................................................... 20

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series IP Phones
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CDP Configuration ........................................................................................................................................................ 21
Manual VLAN Configuration..................................................................................................................................... 22
DHCP VLAN...................................................................................................................................................................... 25
VLAN Setting Configuration...................................................................................................................................... 26
Wi-Fi ............................................................................................................................................................................................. 26
Wi-Fi Configuration ...................................................................................................................................................... 26
Real-Time Transport Protocol (RTP) Ports.................................................................................................................... 33
RTP Ports Configuration ............................................................................................................................................. 33
Network Address Translation (NAT)................................................................................................................................ 34
NAT Traversal Configuration..................................................................................................................................... 34
Keep Alive Configuration............................................................................................................................................ 38
Rport Configuration...................................................................................................................................................... 39
SIP Port and TLS Port Configuration...................................................................................................................... 39
Internet Port and PC Port .................................................................................................................................................... 40
Supported Transmission Methods ......................................................................................................................... 40
Internet Port and PC Port Configuration ............................................................................................................. 40
VPN ............................................................................................................................................................................................... 42
VPN Related Files........................................................................................................................................................... 42
VPN Configuration ........................................................................................................................................................ 43
Quality of Service (QoS) ....................................................................................................................................................... 43
Voice and SIP QoS Configuration........................................................................................................................... 44
802.1x Authentication ........................................................................................................................................................... 45
802.1x Authentication Configuration .................................................................................................................... 45
TR-069 Device Management.............................................................................................................................................. 48
Supported RPC Methods............................................................................................................................................ 48
TR069 Configuration .................................................................................................................................................... 49
Phone Provisioning......................................................................53
Boot Files, Configuration Files and Resource Files.................................................................................................... 53
Boot Files........................................................................................................................................................................... 53
Configuration Files ........................................................................................................................................................ 56
Resource Files.................................................................................................................................................................. 62
Files Download Process............................................................................................................................................... 63
Provisioning Methods ........................................................................................................................................................... 64
Provisioning Methods Priority.................................................................................................................................. 65
Manual Provisioning..................................................................................................................................................... 65
Central Provisioning ..................................................................................................................................................... 71
Setting Up a Provisioning Server...................................................................................................................................... 80
Supported Provisioning Protocols.......................................................................................................................... 81
Supported Provisioning Server Discovery Methods ....................................................................................... 82
Configuring a Provisioning Server.......................................................................................................................... 86
Keeping User’s Personalized Settings after Auto Provisioning............................................................................ 87
Auto Provisioning Flowchart for Keep User’s Personalized Configuration Settings ......................... 88