Specifications

Cisco Unified Wireless IP Phone 7921G Series Deployment Guide 3
Contents
Requirements for the Cisco Unified Wireless IP Phone 7921G............................................................................................................6!
Site Survey...............................................................................................................................................................................................6!
RF Validation..........................................................................................................................................................................................6!
Call Control ............................................................................................................................................................................................7!
Supported Protocols................................................................................................................................................................................7!
Supported Access Points .........................................................................................................................................................................7!
Supported Antennas ................................................................................................................................................................................9!
Phone Models and Localization .............................................................................................................................................................10!
Phone Models........................................................................................................................................................................................10!
World Mode (802.11d) .....................................................................................................................................................................11!
Supported Countries .............................................................................................................................................................................11!
Language Support.................................................................................................................................................................................12!
Radio Characteristics..............................................................................................................................................................................12!
Wireless Security ..................................................................................................................................................................................... 13!
Extensible Authentication Protocol - Flexible Authentication via Secure Tunneling (EAP-FAST) .....................................................14!
Extensible Authentication Protocol – Transport Layer Security (EAP-TLS) ....................................................................................... 16!
Protected Extensible Authentication Protocol (PEAP).........................................................................................................................17!
Cisco Centralized Key Management (CCKM)......................................................................................................................................18!
EAP and User Database Compatibility ................................................................................................................................................ 19!
Voice Security ..........................................................................................................................................................................................20!
Power Management.................................................................................................................................................................................20!
Protocols ...............................................................................................................................................................................................21!
Unscheduled Auto Power Save Delivery (U-APSD)........................................................................................................................21!
Power Save Poll (PS-POLL)............................................................................................................................................................. 21!
Active Mode......................................................................................................................................................................................21!
Delivery Traffic Indicator Message (DTIM).........................................................................................................................................22!
Scan Modes ........................................................................................................................................................................................... 22!
Quality of Service (QoS) ......................................................................................................................................................................... 22!
Configuring QoS in Cisco Unified Communications Manager ............................................................................................................23!
Configuring QoS Policies for the Network ...........................................................................................................................................23!
Configuring Cisco IOS Access Points ..............................................................................................................................................23!
Configuring Cisco Switch Ports .......................................................................................................................................................24!
Configuring Switch Ports for Wired IP Phones................................................................................................................................24!
Sample Voice Packet Capture...........................................................................................................................................................25!
Call Admission Control.........................................................................................................................................................................26!
Pre-Call Admission Control..............................................................................................................................................................26!
Roaming Admission Control ............................................................................................................................................................27!