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单选题

When calls are denied by call admission control (CAC), the calls are rerouted through the PSTN via the use of which Cisco CallManager feature?()

发布日期:2021-10-06

When calls are denied by call admission control (C...
A

automated alternate routing (AAR)

B

Cisco CallManager Attendant Console

C

real-time protocol (RTP)

D

Survivable Remote Site Telephony (SRST)

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