About This Guide - Yealink SIP-T48G Administrator's Manual

This guide is intended for administrators who need to properly deploy Yealink IP phones
with Lync Server. 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.
This guide covers SIP-T48G and T22(P) 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.
<y0000000000xx>.cfg and <MAC>.cfg template configuration files.

For support or service, please contact your Yealink reseller or go to Yealink Technical
Support online: http://www.yealink.com/Support.aspx.
The information detailed in this guide is applicable to the IP phones running Lync
firmware version 7 or higher. The firmware format is like x.x.x.x.rom. The second x from
left must be greater than or equal to 7 (e.g., the firmware version of SIP-T22P IP phone:
7.7.0.50.rom). This administrator guide includes the following chapters:
Chapter 1, "Product

Chapter 2, "Getting

configuration methods and resource files.
Chapter 3, "Configuring Basic

features on IP phones.
Chapter 4, "Configuring Advanced

advanced features on IP phones.
Chapter 5, "Configuring Audio

features on IP phones.
Overview" describes the SIP components and SIP IP phones.
Started" describes how to install and connect IP phones,
Features" describes how to configure the basic
Features" describes how to configure the
Features" describes how to configure the audio

About This Guide

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