When a user is forwarded to Avaya Aura Messaging (AAM), Avaya Aura Communication Manager (CM) needs to indicate to AAM who the call was originally destined for, so that the message is left in the correct mailbox.
Which SIP header is used to indicate for whom the call was originally destined, and the reason for being forwarded to AAM?
The correct SIP header used to indicate for whom the call was originally destined, and the reason for being forwarded to Avaya Aura Messaging, is the History-Info header. This header provides details about the call's forwarding path, which is necessary for Avaya Aura Communication Manager to ensure the message is left in the correct mailbox.
Correct should be A. Information should be presented in History-Info or Diversion header.
The correct one is D. On trunk group form page 4 set "Identity for Calling Party Display: P-Asserted-Identity"
answer should be A