| Exam 300-080 | Question id=4177 | Troubleshoot Call Setup Issues |
In a Cisco UCM multisite WAN with centralized call-processing deployment model, what redundancy feature should be configured on remote site routers to supply basic IP telephony services in the event of a WAN outage?
| A. |
AAR | |
| B. |
SRST | |
| C. |
CAC | |
| D. |
V3PN |