In a Cisco UCM multisite WAN with centralized call-processing deployment model, what redundancy feature should be configured on remote site routers to provide basic IP telephony services in the event of a WAN outage?
A.
AAR
B.
SRST
C.
CAC
D.
V3PN
what redundancy feature should be configured on remote site routers to provide basic IP telephony services in the event of a WAN outage?
In a Cisco UCM multisite WAN with centralized call-processing deployment model, what redundancy feature should be configured on remote site routers to provide basic IP telephony services in the event of a WAN outage?