[Serusers] Dubt on RFC 4484 and SIP Proxy Server behavior

[Victor Pascual Ávila]

For record purpose:
http://www.ietf.org/mail-archive/web/sip/current/msg24665.html

On Sun, Sep 7, 2008 at 5:37 PM, Francesco la Torre
<frankernet at tiscali.it> wrote:
> Hi all,
> I've a doubt regarding a statement at the end of page 5
>
> "... Some important design decisions are associated with carrying
> assertions in a SIP request.  If an assertion is carried by value, or
> uses a MIME-based content indirection system, then proxy servers will be
> unable to inspect the assertion themselves.  If the assertion were
> referenced in a header, however, it might be possible for the proxy
> to acquire and inspect the assertion itself.  There ..."
>
> Why a proxy server will be unable to inspect the assertion themself ?
> SER has functions by which it could be read message body, does this
> behavior not respect any rfc ?
> I'm missing something :-S
>
> Thanks in advance,
> Francesco la Torre
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-- 
Victor Pascual Ávila