Wireless Lan Statistics; Traffic Stream Metrics (Tsm) - Cisco 7925G Series Deployment Manual

Wireless LAN Statistics

Traffic Stream Metrics (TSM)

The Traffic Stream Metrics feature requires the client to report voice traffic related measurements to the AP.
The parameters (queue delay, media delay, packet loss, packet count, roaming delay, roaming count) will be gathered by the AP
and escalated to the WLAN management system, which will help maintain a database that can be used for the benefit of the
stations by ensuring low packet latency and loss.
Check the box "Metrics Collection" in the global 802.11 Voice Parameters to enable Traffic Stream Metrics.
See the "Call Admission Control Settings" section for further information on how to enable TSM.
Cisco Unified Wireless IP Phone 7925G Series Deployment Guide 101