Hi Suresh, Error information support: Here if Error means wrong responses then all the FINAL responses that UA does not understand should be treated as X00 of that class. Provisional responses, other than 100, that UA does not understand should be treated as 183.
Vivek -----Original Message----- From: [EMAIL PROTECTED] on behalf of Ramachandran Iyer Sent: Thu 7/29/2004 4:52 PM To: Suresh P; Sip-Implementors (E-mail) Cc: Subject: Re: [Sip-implementors] Loose routing & Error Information Loose Routing, Strict Routing: The difference between the 2 is basically how the proxy (router) behaves or is intelligent enough to decipher the messages coming to it. Loose router being the more intelligent of the two. This router will always add a (;lr) field on its record-route, which will then be part of the Route list as well. For Strict Routers.. the msg coming to them shoudl be STRICTLY add to them in the request-URI... where as for a Loose Router its ok,, to send the msg as it is, with the term party being in the req-URI.. If for ex, a route list (A, B,C)has been formed, wih an intermediate Router (B) being a strict router. So A will copy the B's URI from the route list, put it on the req-URI and send it to B. B upon receiving, will remove itself from the route list and send it to C. C now be a loose router, understand that even though the msg is sent to it, but the term party is some1 else.. so picks up the last element in the route list, puts it in the req-URI and sends it to the next on the route list. There is some document which shows complete flow with example,, i dont remember which 1.. i guess you could search and find that easily though. Rama Suresh P <[EMAIL PROTECTED]> wrote: Hi all, The following SIP protocol features is relevant in a UA development? If so, why it is required and what is the application in a deployed scenario? 1. Loose routing & strict routing support 2. Error information support. Comments are highly appreciated. Regards, -Suresh _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors --------------------------------- Do you Yahoo!? Yahoo! Mail - 50x more storage than other providers! _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors Confidentiality Notice The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain confidential or privileged information. If you are not the intended recipient, please notify the sender at Wipro or [EMAIL PROTECTED] immediately and destroy all copies of this message and any attachments. _______________________________________________ Sip-implementors mailing list [EMAIL PROTECTED] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
