Hey Jaya, Better you go thru the RFC-3262. and you will understand the logic...
In brief it would be used to send the 1xx responses reliably similar to sending the final responses reliably... INV-200-ACK is something similar to INV-1xx-PRACK Thanks & Regards, Nataraju A.B. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jayalakshmi Bhat Sent: Monday, November 07, 2005 3:25 PM To: [email protected] Subject: [Sip-implementors] PRACK method Hi all , Please can any one explain me when PRACK method is used? Thanks in advance, Jaya, ######################################################### THIS EMAIL MESSAGE IS FOR THE SOLE USE OF THE INTENDED RECIPIENT(S) AND MAY CONTAIN CONFIDENTIAL AND PRIVILEGED INFORMATION. ANY UNAUTHORIZED REVIEW, USE, DISCLOSURE OR DISTRIBUTION IS PROHIBITED.BEFORE OPENING ANY ATTACHMENTS PLEASE CHECK FOR VIRUSES AND DEFECTS.IF YOU ARE NOT THE INTENDED RECIPIENT, PLEASE NOTIFY US IMMEDIATELY BY REPLY E-MAIL AND DELETE THE ORIGINAL MESSAGE. ########################################################## _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
