Cisco 8861 Deployment Manual page 54

Configure Enable Session Timeout as necessary per your requirements. It is recommended to either disable the session
timeout or extend the timeout (e.g. 24 hours / 86400 seconds) to avoid possible interruptions during audio calls. If disabled it
will avoid any potential interruptions altogether, but enabling session timeout can help to re-validate client credentials
periodically to ensure that the client is using valid credentials.
Enable Aironet Extensions (Aironet IE).
Peer to Peer (P2P) Blocking Action should be disabled.
Configure Client Exclusion as necessary.
The Maximum Allowed Clients Per AP Radio can be configured as necessary.
Off Channel Scanning Defer can be tuned to defer scanning for certain queues as well as the scan defer time.
Cisco IP Phone 8861 and 8865 Wireless LAN Deployment Guide
54