Hi Vivek, Any provisional response causes transaction to move to the "proceeding" state . When transaction is in the "proceeding" state it waits for the final response from UAS in order to complete. When there is no final response, in such case the transaction should goes into the "terminated" state.
Since UAC does not get any final response ,UAC client can do two things it can wait for a 408 Request Timeout response from the Server or it can CANCEL the request . Thanks Mahesh Maddipatla -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Vivek Singla Sent: Saturday, September 25, 2010 1:29 AM To: [email protected] Subject: [Sip-implementors] Invite Client Transaction after it gets 100trying Hi, When Invite client transaction gets the 100 trying ( after sending Invite ) from UAS, then the state changes to "Proceeding". What should happen if no response ( 18X or 2xx or 3xx ) comes back to Invite Client who is in Proceeding state? Should the Invite Client goes back to "Calling" state or should it go to "Terminated" state? I couldn't find this information in rfc 3261. I was wondering if anyone could share some information on this. Thanks, Vivek. _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
