As per your inputs, ACK is not received at UA end, then UA should have retransmitted 200 OK and dropped the call after 32 seconds only, since timer H must be running. But call is dropped exact after 15 seconds.
So, you can check if value of timer H is modified at your end. If not, then ACK must have been received at UA. Default value of timer is 32 seconds. regards, Aman Aggarwal Aricent -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of himanshu chhabra Sent: Saturday, May 26, 2012 2:41 PM To: [email protected] Subject: [Sip-implementors] Hi...SIP calls are getting dropped after 15 seconds Dear's In our network the SIP calls are getting dropped exact after 15 seconds and from analysis we observed the SBC is not sending the ACK message in responce to 200 OK message. The clear code appearing in corresponding network element (MSS) is CC603 " No responce from Partner program block" Could you please help me what to check in this case. Thanks a lot in advance!! -- Regards Himanshu Chhabra _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors =============================================================================== Please refer to http://www.aricent.com/legal/email_disclaimer.html for important disclosures regarding this electronic communication. =============================================================================== _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
