Subject: Re: [Simple] addressing scheme in Request-URI

From: Gonzalo Camarillo <[email-masked]>
Date: Fri, 13 Sep 2002 14:30:28 +0300

Jose,

The request-URI can have other URI schemes, such as im: or pres:.
However, it is recommended that they are converted to SIP or SIPS URIs
as soon as possible. That is, if the UA could not do it by itself, the
outbound proxy is the best place to do it. This ensures that SIP proxies
that are not im or pres aware can route messages correctly.

Regards,

Gonzalo

Costa Requena wrote:
> 
> Hi,
> 
> Just quick question!
> I read in previous specs that SIP Request-URI SHOULD have sip: as address
> scheme while To: header MAY have others than sip: schemes.In recent specs
> it says that the content of To: header is copied in Request-URI.
> Could someone ensure that the Request-URI MAY have other schemes than sip: or
> sips: let's say im: pres: http:, etc.
> 
> Thanks in advance!
> BR
> Jose
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