Implementing and Operating Cisco Collaboration Core Technologies (CLCOR) — Question 153

An engineer configures a SIP trunk for MWI between a Cisco UCM cluster and Cisco Unity Connection. The Cisco UCM cluster fails to receive the SIP notify messages. Which two SIP trunk settings resolve this issue? (Choose two.)

Answer options

• A. transmit security status
• B. accept unsolicited notification
• C. allow charging header
• D. accept out-of-band notification
• E. accept out-of-dialog refer

Correct answer: B, E

Explanation

The correct answers B and E are essential for allowing the Cisco UCM cluster to receive MWI notifications correctly. Option B, 'accept unsolicited notification,' allows the system to receive notifications without prior requests, while option E, 'accept out-of-dialog refer,' enables handling of refer requests outside the initial dialog. The other options do not directly address the issue of receiving SIP notify messages.