hello,everyone ,I met a scenario like this
Sip server Sip Client
INVITE(without SDP)
------------------->
200 OK(with SDP)
<------------------
ACK(without SDP)
------------------->
ACK(with SDP)
------------------->
The first ACK is just for stopping the retransmitting "200 ok",I thought,
Because the second ACK should be received after the remote client accepted the
call.The server is not developped by ourselves,So I dont know whether this
implementation complies to RFC?
Waiting for your instruction,Thank you!
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