Cisco Callmanager

Automated alternate routing AAR

Automated alternate routing (AAR) provides a mechanism to reroute calls through the PSTN or other network by using an alternate number. Cisco CallManager automatically reroutes calls through the PSTN or other networks when Cisco CallManager blocks a call due to insufficient location bandwidth. With automated alternate routing, the caller does not need to hang up and redial the called party. When a call is made from the device of one location to the device of another location, location bandwidth...