Which configuration on Cisco Unified Communications Manager is required for SIP MWI to work?
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A. B. C. D.C.
To enable SIP MWI (Message Waiting Indicator) in Cisco Unified Communications Manager, you need to perform the following configuration steps:
Configure the SIP Trunk between Cisco Unified Communications Manager and Cisco Unity Connection. This can be done by creating a SIP trunk on Cisco Unified Communications Manager and configuring it to point to the IP address of the Cisco Unity Connection server.
Configure the CSS (Calling Search Space) for the SIP trunk. The CSS determines which partitions the system can search when attempting to route calls. The CSS assigned to the SIP trunk should include the partition that contains the line DN (Directory Number) for the phone that is associated with the mailbox.
Configure the Line DN Partition. The line DN partition specifies which partition the phone's directory number is assigned to. This partition should be included in the inbound CSS assigned to the SIP trunk.
Configure the Rerouting CSS. The rerouting CSS is used when the system needs to reroute a call due to an unavailable destination. The rerouting CSS should include the partition that contains the line DN for the phone that is associated with the mailbox.
Enable MWI on the Port Group. MWI needs to be enabled on the port group that is associated with the Cisco Unity Connection server.
Assign MWI Extension on the Mailbox. An MWI extension needs to be assigned to the mailbox so that it can be monitored for new messages.
Based on the above steps, the correct answer to the question is B. The line partition must be inside the rerouting CSS assigned to the Cisco Unity Connection SIP trunk.