Re: [Sip] [RFC 4235 & draft-kuthan-sip-derive] 481 "Call doesn't exist " for initial SUBSCRIBE ?

[Iñaki Baz Castillo <ibc at aliax.net>]

El Viernes, 31 de Octubre de 2008, Dale.Worley at comcast.net escribió:
> I would expect that many SIP implementations would not handle Event
> parameters (filtering) correctly, and would just return all dialogs
> present at the UAC.  So the UAS will have to inspect the event body to
> see if its dialog is listed.

Yes, I imagine the same, devices ignoring Event parameters would show all 
their dialogs. So, even if the proxy just forward SUBSCRIBE if Event header 
contains call-id and to-tag parameters, it will imply a privacy risk for the 
device which doesn't implement correctly RFC 4235.

-- 
Iñaki Baz Castillo
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