Configuration Tip For Cisco Aironet Access Points - Cisco 7921G - Unified Wireless IP Phone VoIP Administration Manual

Configuring the Wireless Network
Table D-1 Wireless Network Configuration Tasks (continued)
Activity
Configure Service Set
3.
Identifier (SSID) for each
VLAN
Configure QoS settings
4.
for VLANs
Enable ARP caching
5.
6. Configure radio (802.11)
settings
7. Configure Security for
the voice VLANs

Configuration Tip for Cisco Aironet Access Points

If you are using EAP-FAST, you must increase the EAP request (802.1x) timeout to at least 20 seconds
to ensure that the phone gets the PAC credentials successfully.
To change the request timeout on the controller, follow these steps:
Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0
D-2
Explanation
Configure an SSID for a set of wireless devices
to communicate with each other. Several access
points can have the same SSID to support a
group of wireless phones.
a. Create a QoS policy for the voice
VLAN and assign a higher CoS to voice
traffic.
b. Enable the QoS element for wireless IP
phones to provide channel utilization
(QBSS) information to phones.
Enable this option to ensure two-way audio. The
access point has ARP caching disabled by
default.
• Data Rate—Set for11 Mbps or to the rate for
the frequency band that you are using.
• Client Transmit Power—After a site survey,
determine the appropriate power
requirements and set a specific Client
Transmit Power setting. The Cisco Unified
Wireless IP Phone 7921G uses the same
setting as the access point.
Note If set for Max, the access point does not
advertise Client Transmit Power setting.
Use one of these authentication and encryption
options for the SSID that corresponds to the
voice VLAN:
• Open
• Shared Key
• EAP
• Auto (AKM)
Appendix D Checklist for Deploying the Cisco Unified Wireless IP Phone 7921G
Reference
Interacting with Cisco Unified Wireless
APs, page 2-9
Cisco IOS Software Configuration Guide
for Cisco Aironet Access Points, Cisco IOS
Release 12.3(8)JA
Voice QoS in a Wireless Network,
page 2-10
Configuring QoS Policies, page D-3
Cisco IOS Software Configuration Guide
for Cisco Aironet Access Points, Cisco IOS
Release 12.3(8)JA
Cisco IOS Software Configuration Guide
for Cisco Aironet Access Points, Cisco IOS
Release 12.3(8)JA
Cisco IOS Software Configuration Guide
for Cisco Aironet Access Points, Cisco IOS
Release 12.3(8)JA
Cisco Unified Wireless IP Phone 7921G
Deployment Guide
Interacting with Cisco
Unified Communications Manager,
page 2-12
Cisco IOS Software Configuration Guide
for Cisco Aironet Access Points, Cisco IOS
Release 12.3(8)JA
OL-15985-01