Client Roaming; Call Admission Control - Cisco 7925G Deployment Manual

Other access points enabled can be enabled for Auto RF and workaround the access points that are statically configured.
This may be necessary if there is an intermittent interferer present in an area.
The channel width can be configured for 20 MHz or 40 MHz if using Cisco 802.11n Access Points.
It is recommended to use 40 MHz channels only if using 5 GHz.

Client Roaming

The Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G do not utilize the RF parameters in the Client Roaming
section of the Cisco Unified Wireless LAN Controller as scanning and roaming is managed independently by the phone itself.

Call Admission Control

It is recommended to enable Admission Control Mandatory for Voice and configure the maximum bandwidth and reserved
roaming bandwidth percentages for either 5 or 2.4 GHz depending on which frequency band is to be utilized.
The maximum bandwidth default setting for voice is 75% where 6% of that bandwidth is reserved for roaming clients.
Roaming clients are not limited to using the reserved roaming bandwidth, but roaming bandwidth is to reserve some bandwidth
for roaming clients in case all other bandwidth is utilized.
If CAC is to be enabled, will want to ensure Load-based CAC is enabled, which is available for the Cisco Unified Wireless
LAN Controller, but not currently available on the Cisco Autonomous Access Point platform.
Load-based CAC will account for non-TSPEC clients as well as other energy on the channel.
Enable Traffic Stream Metrics (TSM).
Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G Deployment Guide
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