Exam 350-801 topic 1 question 242 discussion

https://community.cisco.com/t5/collaboration-voice-and-video/understanding-troubleshooting-mwi-on-unity-connection/ta-p/3162948 C Enable Accept unsolicited notification on the SIP Trunk Security Profile. In case of SIP integration, CUC sends SIP notify messages to the phone system to turn the MWI on or OFF so “Accept unsolicited notification” should be checked under SIP security profile assigned to the trunk

C is correct answer.

C is the correct answer. Verified on multiple forums

C https://community.cisco.com/t5/collaboration-voice-and-video/understanding-troubleshooting-mwi-on-unity-connection/ta-p/3162948#:~:text=In%20case%20of%20SIP%20integration%2C%20CUC%20sends%20SIP%20notify%20messages%20to%20the%20phone%20system%20to%20turn%20the%20MWI%20on%20or%20OFF%20so%20%E2%80%9CAccept%20unsolicited%20notification%E2%80%9D%20should%20be%20checked%20under%20SIP%20profile%20assigned%20to%20the%20trunk.

In case of SIP integration, CUC sends SIP notify messages to the phone system to turn the MWI on or OFF so “Accept unsolicited notification” should be checked under SIP profile assigned to the trunk. https://community.cisco.com/t5/collaboration-voice-and-video/understanding-troubleshooting-mwi-on-unity-connection/ta-p/3162948

C - unsolicited notification diversion header is used in call forwarding scenarios

According https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/connection/11x/integration/guide/cucm_sip/b_cucintcucmsip.pdf Select "Redirecting Diversion Header Delivery - Inbound" on the SIP trunk -> valid answer Select "Redirecting Diversion Header Delivery - Outbound" on the SIP trunk -> valid answer Enable "Accept unsolicited notification" on the SIP Trunk Security Profile. -> valid answer Anybody has any clues on this question?