Re: [Sip] Proposed solution for UA loose/target/History-Info problem

[Hadriel Kaplan <HKaplan at acmepacket.com>]

> -----Original Message-----
> From: sip-bounces at ietf.org [mailto:sip-bounces at ietf.org] On Behalf Of
> Jonathan Rosenberg
>
> For a proxy:
>    If the proxy is rewriting the r-uri as a consequence of looking it up
> in a registration database, it looks at the incoming request. It removes
> any existing H-I values. It then adds two H-I values that look like this:
>
>    History-Info: <sip:incoming-ruri>;target;index=1
>                  <sip:outgoing-ruri>;target;index=1.1
>
> and thats it. So really easy for a proxy.

I'm confused.  Why is it removing any existing HI values?  Doesn't that break its compatibility with legacy HI usage?

-hadriel
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