On Mon, Sep 29, 2008 at 11:39 AM, BONNAERENS Ben
<[EMAIL PROTECTED]> wrote:
> I remember discussing this error condition
> at a SIPit event and the consensus was to 400 reject the request over UDP
> with a  reasonphrase like "Via transport mismatch" or "Inconsistent Via 
> transport".

Please, could you quote the text from RFC3261 where it is specified
that only one transport protocol MUST be used within a transaction? I
failed to find it.

In case there's no such a text...What if, for whatever reason, a SIP
entity desires to use different transport protocols for requests and
responses within the same transaction?

Cheers,
-- 
Victor Pascual Ávila

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