In a SIP trace capturing PPM messages, which device sends the getCallHistory PPM request, and what is it requesting?

In a SIP trace capturing PPM messages, which device sends the getCallHistory PPM request, and what is it requesting?
A . the SIP endpoint; It is requesting its call log to be retrieved from Session Manager.
B . the SIP endpoint; It is requesting its contact list to be retrieved from Session Manager.
C . the Avaya Aura® Session Manager (SM) server; It is requesting the call history from System Manager.
D . System Manager; It is requesting the call log history from Communication Manager.

View Answer

Answer: A