Hi,
Assume UA1 sends an OPTIONS as the FIRST request to UA2 to query its
capabilities even before sending INVITE.
a) Can i assume the session between UA1 and UA2 has started with OPTIONS
itself?Or,is it the INVITE(sent after OPTIONS) triggers the session between
them?
b) In such case,will the UA1 make use of the same CallId as in OPTIONS, in
its INVITE?
c) Also,if UA2 had responded for OPTIONS with Tag t1 in its 'To'.Will the
same To tag(t1) be used in following INVITE request?
Thanks in advance,
Anand
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