[Sip-implementors] doubt in BYE and ACK

[S.Kumar]

Hi,

please could any one explain me this.

after getting 200 Ok if the caller has decided to terminate the call, can he
send BYE with out sending ACK. or is it compulsory that for INVITE we have to
send ACK, in all situation after getting the final response.

thanks in advance
S.Kumar
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