Cisco 7920 Administration Guide - Page 57

Chapter 2 An Overview of the Wireless Network Understanding the Phone Startup Process Table 2-5 Cisco IP Phone Startup Process (continued) Step Description Related Topics 3. Authenticating with The Cisco Wireless IP Phone 7920 begins the access point authenticating process. • If set for Open, then any device can authenticate to the access point. For added security, static WEP encryption might optionally be used. Security Mechanisms in the Wireless Network, page 2-13 • If set to Shared Key, the phone encrypts the challenge text using the WEP key and the access point must verify that the WEP key was used to encrypt the challenge text before network access is available. • If set for LEAP, then the LEAP user name and password are authenticated by the RADIUS server before network access is available. • If set for AKM, the phone looks for an access point with one of the following key management options enabled: - WPA or CCKM-The phone authenticates with the RADIUS server. - WPA-PSK-The phone authenticates with the access point using the pre-shared key password. OL-7104-01 Cisco Wireless IP Phone 7920 Administration Guide for Cisco CallManager Release 4.0 and 4.1 2-23