Yealink SIP-T21 E2 User Manual page 5

Thank you for choosing the SIP-T21 E2/SIP-T21P E2 (hereinafter referred to as SIP-T21(P) E2)
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-T21 E2 and SIP-T21P E2 IP phones is that only
SIP-T21P E2 supports PoE.
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-T21(P) E2 IP phone.
Note
Network Directory and Network Call Log features are hidden for IP phones in neutral
firmware, which are designed for the BroadWorks environment. Please contact your
system administrator for more information.
Topics provided in this guide include:
Chapter 1
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Chapter 2
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Chapter 3
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Chapter 4
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Chapter 5
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This section describes the changes to this guide for each release and guide version.
The following section is new:
Entering Data and Editing Fields

Major updates have occurred to the following sections:
Icon Instructions

Overview
Getting Started
Customizing Your Phone
Basic Call Features
Advanced Phone Features
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About This Guide
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