[Sip-implementors] Offer/Answer question

Fri, 11 Apr 2008 10:48:23 -0700 

For an INVITE carrying an offer, does the offer/answer has to complete
within the INVITE transaction? Can it complete outside the transaction
but within the same dialog? Call flow is:
 
-------------->Invite ( offer )
<------------180 ( ringing )
<------------200OK ( empty..no offer )
------------->ACK
<------------Re-Invite ( Answer to offer in first invite )
-------------->200OK
<--------------ACK
 
M
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