Cullen wrote: > The thing I keep asking is can we make a list of reason why > SDP and headers get changes and in what scenarios they do > this. I think it will be hard to sort how to fix this without > being clear what needs to be fixed. >
Isn't that the function of the text that was placed in section 8 of http://tools.ietf.org/html/draft-elwell-sip-e2e-identity-important-03 If it is not, then what do you think is missing. regards Keith > -----Original Message----- > From: [email protected] [mailto:[email protected]] On > Behalf Of Cullen Jennings > Sent: Tuesday, March 31, 2009 11:32 PM > To: Jiri Kuthan > Cc: [email protected]; Francois Audet > Subject: Re: [Sip] francois' comments and why RFC4474 not > used in the field > > > On Mar 28, 2009, at 2:02 PM, Jiri Kuthan wrote: > > > > > I'm worried this is only a wishful thinking. While > perfectly logical, > > still even in such constrained setups some bizzar ALGs do in my > > experience appear in the middle, change SDP and make thus > the identity > > worthless. > > The thing I keep asking is can we make a list of reason why > SDP and headers get changes and in what scenarios they do > this. I think it will be hard to sort how to fix this without > being clear what needs to be fixed. > > For example, one of the things we might want to say is > something like: > the Phone is behind a NAT and connects to it's proxy / > registrar for its' domain. That proxy/b2bua whatever mucks > with IP/ports in the SDP for NAT traversal. Then we could ask > if 4474 is broken in this case or not and what might be a > good way of solving the problem of having UAs behind NATs. > > Cullen <in my individual contributor role> > > _______________________________________________ > Sip mailing list https://www.ietf.org/mailman/listinfo/sip > This list is for NEW development of the core SIP Protocol Use > [email protected] for questions on current sip > Use [email protected] for new developments on the application of sip > _______________________________________________ Sip mailing list https://www.ietf.org/mailman/listinfo/sip This list is for NEW development of the core SIP Protocol Use [email protected] for questions on current sip Use [email protected] for new developments on the application of sip
