Which Cisco Unified Communications Manager configuration is required for SIP MWI integrations?
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A. B. C. D.A.
SIP MWI (Message Waiting Indicator) integration allows Cisco Unified Communications Manager (CUCM) to work with a third-party voicemail system that uses SIP to notify CUCM of new voicemail messages. When a user has a new voicemail message, the voicemail system sends a SIP NOTIFY message to CUCM, which then sends an MWI SIP message to the phone to light up the message waiting indicator.
To configure SIP MWI integration in CUCM, the following configuration steps are required:
Create a SIP trunk between CUCM and the voicemail system. This allows CUCM to communicate with the voicemail system using SIP.
Enable SIP MWI on the voicemail system. This allows the voicemail system to send a SIP NOTIFY message to CUCM when a new voicemail message is received.
Configure the SIP trunk security profile to accept presence subscriptions. This allows CUCM to subscribe to presence updates from the voicemail system, which enables it to receive SIP NOTIFY messages when a new voicemail message is received.
Configure the SIP trunk security profile to accept unsolicited notifications. This allows the voicemail system to send SIP NOTIFY messages to CUCM without CUCM first subscribing to the voicemail system's presence.
Select Redirecting Diversion Header Delivery - Inbound on the SIP trunk. This ensures that the redirecting diversion header in the SIP NOTIFY message is delivered to CUCM when a new voicemail message is received.
Therefore, the correct answer is A. Select Redirecting Diversion Header Delivery - Inbound on the SIP trunk.