Hi all,

I have a query regarding a scenario:

Pre-Condition: PRACK is enabled and provisional responses are sent reliably.

1) UA1 send INVITE to UA2
2) UA2 sends 100 Trying and then 180 Ringing (reliably), but no PRACK is 
received yet.
3) Now UA2 receives INVITE rexmission after sending 180 Ringing.

My query is what should UA2 respond with, should it rexmit 100 Trying OR 180 
Ringing ??? 
Please note that this INVITE rexmission could be triggerred from immediate 
Proxy or from UA1.


Thanks,

Aashish


 
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