When One Avaya SIP Telephone (AST) User Agent Calls Another

Multiple Choice

When one Avaya SIP Telephone (AST) user agent calls another AST user agent, Session Manager goes through different phases of processing the call. What is the maximum number of Phase Tags and what are they called?

A) Four - imsorig, origdone, imsterm, termdone
B) Two - origappseq and termappseq
C) Three - ingress, process, egress
D) Two - imsorig and imsterm