When retrieving a message from Avaya Aura® Messenger (AAM), what is the function of the RE- INVITE?

Question

Options

• AThe RE-INVITE is only used when the initial INVITE is not transmitted successfully.
• BThe RE-INVITE shuffles the media path off Avaya Aura® Communication Manager (CM).
• CThe RE-INVITE is to allow the user to be authenticated.
• DThe RE-INVITE is only sent if a voice port cannot be initially connected to the caller.

• B
  6% (2)
• C
  90% (28)
• D
  3% (1)

Explanation

Option C is correct because in the Avaya Aura® Messenger message retrieval workflow, after the initial SIP INVITE establishes the session, the RE-INVITE is sent mid-session to facilitate user authentication - specifically, to allow the subscriber to verify their identity (e.g., enter a PIN) before gaining access to their mailbox. The RE-INVITE renegotiates the session parameters as part of this credential verification step.

Why the distractors are wrong:

• A is incorrect because a RE-INVITE is not a retry mechanism for a failed initial INVITE; it is a deliberate mid-session request on an already-established call.
• B is incorrect in this context; while RE-INVITE can be used to shuffle or modify media paths in some Avaya flows, that is not its function specifically during AAM message retrieval.
• D is incorrect because the RE-INVITE is a standard, expected part of the authentication workflow - it is not conditionally triggered by voice port connection failures.

Memory tip: Associate "RE-INVITE" with "Re-Identify" - the system sends a RE-INVITE to re-identify (authenticate) the caller before unlocking their voicemail. If you remember that RE-INVITE in AAM is about proving who you are, option C becomes intuitive.

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