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RE: [Sip] Regarding 305 Redirection message ....

Hi,
    In a simple scenario where an UA is behind an "authenticating" proxy, and where the UA trusts requests from the proxy only, if an INVITE is directly send to the UA, it may request the sender of the UA to go through the proxy to get authenticated and the trust relationship.
    305 is a requirement for specific network toplogies and an UAS which sends this is never a redirect server.
 
Cheers,
Prasanna
-----Original Message-----
From: sip-admin@ietf.org [mailto:sip-admin@ietf.org]On Behalf Of Rajesh Kalshetty (rkalshet)
Sent: Monday, January 27, 2003 4:56 PM
To: sip@ietf.org
Subject: [Sip] Regarding 305 Redirection message ....


Hi Everyone,

I am looking for a real time scenario in which 305(Use proxy) message is generated by a redirect server.
I find it hard to think of an example where a pure redirect server would send a USE PROXY instead of simply issuing a 300-302 messages.

It is also said in the RFC that the 305(use proxy) "MUST ONLY" be generated by user agent servers. This is a bit unclear to me.

thanks.

Rajesh k.