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Question 176 - 300-810 discussion

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A collaboration engineer is troubleshooting MWl issues with Cisco Unity Connection and Cisco UCM. Users report that MWl lights do not work when a new message is received. After doing a packet capture, the engineer notices that Unity Connection sends a SIP Notify to Cisco UCM for MWI.Cisco UCM responds with a SIP 503 Service Unavailable message. Which action resolves the issue?

A.

Configure the SIP server list on the Cisco Unity Connection port group to match the Cisco UCM device pool settings on the SIP trunk.

Answers
A.

Configure the SIP server list on the Cisco Unity Connection port group to match the Cisco UCM device pool settings on the SIP trunk.

B.

Assign the proper voicemail profile to the directory numbers on Cisco UCM.

Answers
B.

Assign the proper voicemail profile to the directory numbers on Cisco UCM.

C.

Uncheck'Send Message Counts' on the phone system settings on Cisco Unity Connection.

Answers
C.

Uncheck'Send Message Counts' on the phone system settings on Cisco Unity Connection.

D.

Uncheck'Accept unsolicited notifications' on the SIP trunk security profile.

Answers
D.

Uncheck'Accept unsolicited notifications' on the SIP trunk security profile.

Suggested answer: A

Explanation:

This option is the correct action to resolve the issue of MWI not working when a new message is received. The SIP server list on the Cisco Unity Connection port group defines the destination addresses for SIP messages, such as MWI notifications, that Unity Connection sends to Cisco UCM. If the SIP server list does not match the device pool settings on the SIP trunk, Cisco UCM may not be able to route the MWI notifications to the correct devices, and may respond with a SIP 503 Service Unavailable message.

Reference:

https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/connection/10x/integration/guide/cucm_sip/cucintcucmsip100x.pdf

https://www.cisco.com/c/en/us/support/docs/unified-communications/unity-connection/200453-Configure-MWI-for-SIP-Integration-Betwee.html

asked 10/10/2024
Aygul Korkmazlar
35 questions
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