Hi Victor, Thanks for your comments. I have issue with the following URI format;
sip:FQDN;transport=x -> Resolve x by DNS SRV If successful, resolve by DNS A and send to the resolved ip address and resolved port, over transport x If non-successful, resolve by DNS A and send to the resolved ip address, port 5060 over transport x Once the port has been resolved with DNS SRV, do we need to place the resolved port in URI before sending SIP message to the UAS? Or can we kept the port field blank? One more point, do we need to use the SRV domain of resolved IP address (which was returned in NAPTR response) OR domain for which NAPTR query was done in URI part of SIP message? Best Regards, Vivek Batra -----Original Message----- From: Iñaki Baz Castillo [mailto:i...@aliax.net] Sent: Wednesday, May 19, 2010 7:56 PM To: Victor Pascual Avila Cc: Vivek Batra; sip-implementors@lists.cs.columbia.edu Subject: Re: [Sip-implementors] Port/Domain - DNS SRV 2010/5/19 Victor Pascual Avila <victor.pascual.av...@gmail.com>: > sip:ip1 -> Send to ip1, port 5060 over UDP > > sip:ip1:portA -> Send to ip1, port A over UDP > > sip:ip1;transport=x -> Send to ip1, port 5060 over transport x > > sip:ip1:portA;transport=x -> Send to ip1, port A over transport x > > sip:FQDN -> Resolve by DNS NAPTR > -If successful, resolve the selected replacement by DNS SRV -If > non-successful, resolve UDP by DNS SRV > > sip:FQDN:portA -> Resolve by DNS A and send to the resolved ip > address, port A over UDP > > sip:FQDN;transport=x -> Resolve x by DNS SRV If successful, resolve by > DNS A and send to the resolved ip address and resolved port, over > transport x If non-successful, resolve by DNS A and send to the > resolved ip address, port 5060 over transport x > > sip:FQDN:portA;transport=x -> Resolve by DNS A and send to the > resolved ip address, port A over transport x This explanation should appear in the RFC 3263 as it is :) -- 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
