Because 1xx responses are not reliable unless PRACK is used.
On Thu, Jun 10, 2010 at 6:35 PM, Alex Balashov <[email protected]> wrote: > Greetings, > > If in a typical INVITE transaction to set up a session there can be > only one SDP offer and one answer, and the first answer is final, then > why the practice of sending 18x+SDP and then sending the answer again > in 200 OK? > > Thanks, > > -- > Alex Balashov - Principal > Evariste Systems LLC > 1170 Peachtree Street > 12th Floor, Suite 1200 > Atlanta, GA 30309 > Tel: +1-678-954-0670 > Fax: +1-404-961-1892 > Web: http://www.evaristesys.com/ > _______________________________________________ > 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
