Specifications

Table Of Contents
Contents
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Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified CallManager Release 4.1, 4.2, 5.0
OL-10802-02
Features Supported on the Cisco Unified Wireless IP Phone 7921G 1-5
Feature Overview 1-6
Configuring Telephony Features 1-6
Configuring Security for the Phone 1-7
Configuring Network Access for the Phone 1-8
Providing Users with Feature Information 1-8
Understanding Security Features for Cisco Unified IP Phones 1-9
Overview of Supported Security Features 1-11
Understanding Security Profiles 1-14
Identifying Encrypted and Authenticated Phone Calls 1-15
Security Restrictions 1-16
Overview of Configuring and Installing the Cisco Unified Wireless IP Phone
7921G 1-16
Configuring the Cisco Unified Wireless IP Phone 7921G in Cisco Unified
CallManager 1-17
Checklist for Configuring the Cisco Unified Wireless IP Phone 7921G in
Cisco Unified CallManager 1-17
Installing the Cisco Unified Wireless IP Phone 7921G 1-22
Checklist for Installing the Cisco Unified Wireless IP Phone 7921G 1-22
CHAPTER
2 An Overview of the Voice Over IP Wireless Network 2-1
Understanding the Wireless LAN 2-1
The 802.11 Standards for Wireless LAN Communications 2-3
Connecting to the Wireless Network 2-4
Security for Voice Communications 2-6
Components of the VoIP Wireless Network 2-8
Networking Protocols Used with Cisco Unified Wireless IP Phones 2-8
Interacting with Cisco Unified Wireless Access Points 2-12
Associating to an Access Point 2-13
Roaming in a Wireless Network 2-14