| Exam 300-075 | Question id=2941 | Implement Bandwidth Management and Call Admission Control on CUCM |
Which statement is correct about AAR?
| A. |
The end users see, "Network Congestion Rerouting?" but AAR is otherwise transparent to the end user and works without user intervention. | |
| B. |
AAR will display "not enough bandwidth" on the IP phone while it reroutes the call. | |
| C. |
AAR allows calls to be rerouted because of insufficient Cisco Unified Border Element controlled bandwidth to an ITSP. | |
| D. |
AAR allows calls to be rerouted due to insufficient gatekeeper controlled IP WAN bandwidth. |
Automated alternate routing (AAR) provides a mechanism to reroute calls through the PSTN or other network by using an alternate number when Cisco Unified Communications Manager 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.