Hi , The request will take that path itself , like some new request.
Regards, Sumit Jindal On Wed, Feb 10, 2010 at 5:24 PM, Couret Tabt <courett...@gmail.com> wrote: > Thank you, Castillo. > > I mean below: > > A UAC can NOT know an originator of 407. > But UAC can send back INVITE to the originator of 407. > Why? > > > 2010/2/10 Iñaki Baz Castillo <i...@aliax.net>: >> El Miércoles, 10 de Febrero de 2010, Couret Tabt escribió: >>> Thank you, Castillo. >>> >>> At 3.2 in RFC3665, F2 407 is below: >>> >>> F2 407 Proxy Authorization Required Proxy 1 -> Alice >>> >>> SIP/2.0 407 Proxy Authorization Required >>> Via: SIP/2.0/TCP client.atlanta.example.com:5060;branch=z9hG4bK74b43 >>> ;received=192.0.2.101 >>> From: Alice <sip:al...@atlanta.example.com>;tag=9fxced76sl >>> To: Bob <sip:b...@biloxi.example.com>;tag=3flal12sf >>> Call-ID: 3848276298220188...@atlanta.example.com >>> CSeq: 1 INVITE >>> Proxy-Authenticate: Digest realm="atlanta.example.com", qop="auth", >>> nonce="f84f1cec41e6cbe5aea9c8e88d359", >>> opaque="", stale=FALSE, algorithm=MD5 >>> Content-Length: 0 >>> >>> In the above, there is no "Contact" header . >> >> Of course, 4XX responses have no Contact as it's useless. >> >> >>> So I think Alice can NOT know even the full host name of Proxy1 >>> (ss1.atlanta.example.com). >> >> Alice doesn't know if the 407 comes from P1, P2 or whatever as Alice where P1 >> relayed the requests. >> >> >> >>> But Alice(UAC) can resend INVITE to the originator(Proxy1) >>> at F4 INVITE. >>> Why can Alice(UAC) do so? >> >> This is basically as Digest authentication works in SIP. Not sure if I >> understand what you mean in this last question. >> >> >> >> -- >> Iñaki Baz Castillo <i...@aliax.net> >> >> _______________________________________________ >> Sip-implementors mailing list >> Sip-implementors@lists.cs.columbia.edu >> https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors >> > > _______________________________________________ > Sip-implementors mailing list > Sip-implementors@lists.cs.columbia.edu > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > -- Regards, Sumit Jindal _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
