Either your ACK message is not accepted by the other party or u r sending to wrong destn..check if there is a Route hdr in 200 OK.If it's there send ACK to that not to the Contact addr.
srini On 30 Nov 2004, mahesh akarapu wrote: > Hi Pankaj, > > Thanks for the response. But I am afraid your response does not answer > my question. There are no RE-INVITE or BYE messages between ACK and the > 200 OK. Immediately after an ACK is recieved, a 200 OK is sent. I doubt > that there may be something missing in ACK because of which the UA is > not accepting the ACK and hence sending the 200 OK. But i am not sure on > that. > > Regards > Mahesh > > > > On Tue, 2004-11-30 at 11:01, [EMAIL PROTECTED] wrote: > > > > Hi Mahesh, > > > > As RFC 3261 mentions, the case wherein a 200 OK is sent after an ACK can > > be in response to a RE-INVITE sent from either party. The other case can > > be a response to a BYE message. > > > > Hope it answers your question. > > > > Thanks, > > Pankaj. > > > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] On Behalf Of mahesh > > akarapu > > Sent: Tuesday, November 30, 2004 10:48 AM > > To: [EMAIL PROTECTED] > > Subject: [Sip-implementors] 200 OK after recieving ACK > > > > Hi all, > > I have a doubt regarding how ACK requests are handled. > > I am trying to establish a SIP session. The following is the scenario. > > A------------B > > INV---------> > > <----------100 > > <----------180 > > <----------200 > > ACK---------> > > Till this point, it is OK.But after this there are repeated 200Ok from B > > as below. > > <----------200 > > ACK---------> > > <----------200 > > ACK---------> > > > > I guess according to the RFC 3261, once ACK is received, the UA should > > stop sending the 200 OK.Could someone please tell me if this a possible > > scenario, that is under what circumstances 200 OK is sent after > > recieving ACK. I could not get the answer for this from the RFC. > > > > Could someone answer this. > > > > thanks > > Mahesh > > > > > > > > _______________________________________________ > > Sip-implementors mailing list > > [EMAIL PROTECTED] > > http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors > > > > > > > > Confidentiality Notice > > > > The information contained in this electronic message and any attachments to > > this message are intended > > for the exclusive use of the addressee(s) and may contain confidential or > > privileged information. If > > you are not the intended recipient, please notify the sender at Wipro or > > [EMAIL PROTECTED] immediately > > and destroy all copies of this message and any attachments. > > > _______________________________________________ > Sip-implementors mailing list > [EMAIL PROTECTED] > http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors > _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
