On Jan 7, 2008 1:54 PM, <[EMAIL PROTECTED]> wrote: > I'm not sure whether it makes to sense to use domain names in a > Contact URI. The SIP ABNF allows it. Any thoughts or suggestions on > this? > > It is legal to do so, and it is mandatory that a registrar/proxy > support it correctly, as the registrar does not control the contact > addresses that UAs will present to it.
Define "support it correctly". If my Registrar uses its own database to resolve a domain name in a Contact URI instead of querying DNS, then am I violating any normative statements made in any RFC? > I don't know what the constraints in your design are, but have you > considered using a URI-parameter? If your redirection service carries > the URI-parameter form the AOR to the registered contact, then you can > have an unlimited number of different SIP URIs that map through one > registration to distinct contact URIs. Let me try to understand this. We didn't really have a redirection service in mind. We were thinking that a Registrar and a Proxy will be sufficient. Our goal is to bind hundreds of Contact URIs to one AoR. We're saying that we can't carry all those Contact URIs in-line in a REGISTER message so lets carry them "indirectly" and use an OOB mechanism. I'm not sure how a Redirection Service, URI parameter helps this situation. -- Thanks, Raj _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
