About This Guide
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Thank you for choosing the SIP-T21P/SIP-T21 IP phone, exquisitely designed to provide
business telephony features, such as Call Hold, Call Transfer, Busy Lamp Field, Multicast
Paging and Conference over an IP network. The difference between the SIP-T21P and
SIP-T21 IP phone is that the former supports PoE, while the latter does not.
This guide provides everything you need to quickly use your new phone. First, verify
with your system administrator that the IP network is ready for phone configuration. Also
be sure to read the Packaging Contents and Regulatory Notices sections in this guide
before you set up and use the SIP-T21P/SIP-T21 IP phone.
If this is your first time using the SIP-T21P/SIP-T21 IP phone, we recommend that you first
refer to the
Quick Installation Guide
and
Quick Reference Guide
, available online:
http://www.yealink.com/SupportDownloadfiles_detail.aspx?CateId=333&flag=142.
Note
Topics provided in this guide include:
Chapter 1 Overview
Chapter 2 Getting Started
Chapter 3 Customizing Your Phone
Chapter 4 Basic Call Features
Chapter 5 Advanced Phone Features
This section describes the changes to this guide for each release and guide version.
Major updates have occurred to the following sections:
LED Instructions on page 4
Shared Line, Busy Lamp Field List, Network Directory and Network Call Log features are
hidden for IP phones in neutral firmware version, which are designed for BroadWorks
environment. Please contact your system administrator for more information.
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