Hi,
I have an eagerness to know what SIP Application Server exactly does in a real time senario.Could you please explain me in detail what a SIP Application Server does in services like Instant Messaging or Call Forwarding ,what all inputs it require and moreover which all entities(like HSS,S-CSCF etc) does it interact with, in order to perform its task.Please explain me the call flow taking the examples of IM and Call Forwarding.
Thank You.
With regards
Vincent P.
