Cisco 7925G Deployment Manual page 46

Configure session timeout as necessary. It is recommended to extend the timeout to avoid possible interruptions during re-
authentication.
Enable Aironet Extensions (Aironet IE).
Disable client exclusion for the voice network.
DHCP Address Assignment should be disabled.
MFP client protection should be disabled or only set to optional.
For the autonomous access point, ensure that the SSID is configured for open + eap as and network-eap when using 802.1x
authentication.
As of the 1.3(2) release, the Cisco Unified Wireless IP Phone 7925G utilizes open + eap when doing 802.1x authentication, but
utilized network-eap in previous releases.
dot11 ssid voice
vlan 21
authentication open eap
Cisco Unified Wireless IP Phone 7925G Deployment Guide
eap_methods
46