Multiple Choice
An endpoint has a SIP trunk configured between Cisco Unified Communications Manager (CUCM) and a Cisco VCS cluster. When a call is made from a Cisco TelePresence System EX60 that is registered to the Cisco VCS to a Cisco IP Phone 9971 that is registered to CUCM, it rings. But upon picking up the call, a busy tone is heard. What should be checked to resolve this issue?
A) CUCM zone on the Cisco VCS.
B) SIP trunk and phone region settings.
C) SIP trunk registration.
D) authentication on the SIP trunk.
Correct Answer:
Verified
Correct Answer:
Verified
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