Cisco 7925G Deployment Manual page 25

PEAP (MS-CHAPv2) requires that a user account be created on the authentication server.
The authentication server can be validated via importing a certificate into the Cisco Unified Wireless IP Phone 7925G, 7925G-
EX, and 7926G.
See the Installing Certificates section for more information.
For more information on Cisco Secure Access Control System (ACS), refer to the following links.
http://www.cisco.com/en/US/prod/collateral/vpndevc/ps5712/ps2086/ps7032/product_data_sheet09186a00800887d5.html
http://www.cisco.com/en/US/prod/collateral/netmgtsw/ps5698/ps6767/ps9911/data_sheet_c78-614584.html
Note: If using a 3rd party RADIUS server, ensure that PEAP v0 (MS-CHAP v2) is enabled. PEAP v1 (GTC) is not supported.
Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G Deployment Guide
25