Hello, Epexegetically, SIP responses trace a fixed-route which is indicated by Via header. Via header is set, when SIP request is transmitted. Hence, SIP responses do not loop. It is unnecessary to use Max-Forwards header on SIP request.
On Thu, 1 Mar 2007 16:51:12 -0000 Attila.Sipos at vegastream.com (Attila Sipos) wrote: > > The Max-Forwards header serves no purpose in SIP responses. > > It is used to check that a SIP request does not traverse > too mnay hops. In other words it is a primitive tool to > prevent a scenario where SIP messages loop infinitely > (in the absence of loop detection algorithms). > > Regards, > Attila > > > > > -----Original Message----- > From: sip-implementors-bounces at cs.columbia.edu > [mailto:sip-implementors-bounces at cs.columbia.edu]On Behalf Of Satyendra > Tiwari > Sent: 01 March 2007 12:24 > To: sip-implementors at cs.columbia.edu > Subject: [Sip-implementors] Max-Forward Header > > > Hello, > > Is Max-Forward header mandatory in SIP responces? > If optional then why? > > > > > > Thanks And Regards, > Satyendra Tiwari > Alcatel-Lucent > _______________________________________________ > Sip-implementors mailing list > Sip-implementors at cs.columbia.edu > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
