Which Cisco Unified communications manager configuration is required for SIP MWI integration?

Which Cisco Unified communications manager configuration is required for SIP MWI integration?
A . Select “Redirecting Diversion Header Delivery― Inbound’ on the SIP trunk
B. Enable “Accept presence subscription” on the SIP trunk security profile
C. Select “Redirecting Diversion Header Delivery C outbound” on the SIP trunk
D. Enable “Accept unsolicited notification” on the SIP Trunk security profile

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Answer: D