hai vikram , ACK is considered as part of Transaction for non-2xx final responses. because Trasacation will not be considered as closed until the recepion of ACK , ensures the reliable delivery of non-2XX final responses to client.
thanks theja "VikramB"<[EMAIL PROTECTED]> wrote: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=iso-8859-1"> <META content="MSHTML 6.00.2900.2802" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial size=2>Hello All,</FONT></DIV> <DIV><FONT face=Arial size=2> In rfc 3261 section 6 Definition </FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2><STRONG> SIP Transaction : </STRONG></FONT></DIV> <DIV><STRONG><FONT face=Arial size=2> ...</FONT></STRONG></DIV> <DIV><STRONG><FONT face=Arial size=2> ....</FONT></STRONG></DIV> <DIV><FONT face=Arial size=2><STRONG> </STRONG> If the request is INVITE and the final response is a non-2xx, the transaction also<BR> includes an ACK to the response. The ACK for a 2xx response to an INVITE request is a separate transaction.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2> My query is why ACK is considered as a part of same transaction when in case of non-2xx response.?</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>regards</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>VIkram</FONT></DIV></BODY></HTML> Get Your Private, Free E-mail from Indiatimes at http://email.indiatimes.com Buy The Best In BOOKS at http://www.bestsellers.indiatimes.com Bid for for Air Tickets @ Re.1 on Air Sahara Flights. Just log on to http://airsahara.indiatimes.com and Bid Now! _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
