What is the cause of the issue?

0.101.121:5061;branch=z9hG4bK6e7932e8ae287a80ee699eb04a6155a2 From: “CCNP Collaboration” <sip:[email protected]>;tag=73a834a850d8ed13 To: <sip:[email protected]>;tag=252834177 Date: Mon, 30 Nov 2020 18:25:12 GMT

Call-ID: cf600c54-974c-48e5-92e2-95b1d4b9218f

CSeq: 1199885731 INVITE

Allow-Events: presence

Server: Cisco-CUCM12.5

Content-Length: 0

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Some calls fail to connect after an engineer implements load balancing for a Cisco Meeting Server cluster. The engineer determines that if a call leaves Cisco UCM using the Cisco Meeting Server 1 SIP trunk, but the conference is already hosted on Cisco Meeting Server 2, then the call fails. If the call leaves Cisco UCM using the Cisco Meeting Server 2 SIP trunk, but the conference is already hosted on Cisco Meeting Server 1, then the call fails .

What is the cause of the issue?
A . Cisco UCM is configured with the wrong
B . 509 certificate name for the Call Bridge.
C . Cisco UCM is sending calls to a Cisco Meeting Server when the calls are hosted on another Call Bridge in the same cluster.
D . The Cisco UCM SIP trunk security profile is not configured to accept the replaces header.
E . Cisco UCM does not have a SIP trunk to the Call Bridge.

View Answer

Answer: B