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.)

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B. accept unsolicited notification Enabling "Accept Unsolicited Notification" on the SIP trunk security profile allows Cisco UCM to process MWI NOTIFY messages that are not sent in response to an existing SUBSCRIBE dialog. E. accept out-of-dialog refer While "Accept Out-of-Dialog Refer" is primarily for call transfer scenarios, it is often a related security setting in Cisco UCM SIP trunks that, when enabled alongside other options, helps ensure broader SIP message processing for advanced features.

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A. transmit security status "Transmit security status" is related to sending security information from UCM, not receiving MWI notifications.

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C. allow charging header "Allow charging header" relates to billing information and is irrelevant to MWI functionality.

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D. accept out-of-band notification MWI uses in-band SIP NOTIFY messages; "accept out-of-band notification" refers to other signaling mechanisms, not standard SIP MWI.

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…

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