Specifications

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 the end-users. It provides
details on the functionality and configuration of the IP phones.
Many of the features described in this guide involve network settings, which could
affect the IP phone performance in the network. So an understanding of IP networking
and prior knowledge of IP telephony concepts are necessary.
Documentations
This guide covers the SIP-T28P, T26P, T22P and T20P IP phones. The following related
documents for SIP-T2xP IP phones are available:
 Quick Installation Guides, which describe how to assemble IP phones.
 Quick Reference Guides, which describe 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.
 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 online http://www.yealink.com/Support.aspx.
In This Guide
The information detailed in this guide is applicable to the firmware version 71 or higher.
The firmware format likes x.x.x.x.rom. The second x from left must be greater than or
equal to 71 (e.g., the firmware version of SIP-T28P 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 and
the configuration methods.
 Chapter 3, “Configuring Basic Features” describes how to configure the basic