Cisco UNIFIED 9971, Deployment Manual, Page: 59 / 104

Cisco Unified IP Phone 9971 Wireless LAN Deployment Guide
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If the Cisco Unified IP Phone 9971 is running firmware version prior to 9.1(1), then enable WPA policy with TKIP encryption
and 802.1x + CCKM for authenticated key management type in order to enable fast secure roaming.
The WMM policy should be set to
Required only if the Cisco Unified IP Phone 9971 or other WMM enabled phones will be
using this SSID.
If there are non-WMM clients existing in the WLAN, it is recommended to put those clients on another SSID / WLAN.
If non-other WMM clients must utilize the same SSID as the Cisco Unified IP Phone 9971, then ensure the WMM policy is set
to
Allowed.
Enable 7920 AP CAC to advertise Qos Basic Service Set (QBSS) to the client.