2009/2/25 Andrew Wood <[email protected]>:
> Because if the caller was behibnd NAT surely is perfectly possible for
> the Call-ID to be something like [email protected]

A UA cannot set a Call-ID like "[email protected]", it should choose a
longer token. Also take into account that adding "@IP" to the Call-ID
is *not required*.


> which could easily be chosen by 2 different clients on different
> networks but whose request is forwarded to the same proxy

You again forget that From tag is also part of the dialog info, not
just the Call-ID.
It's impossible that two UA's in two different networks use the same
Call-ID and the same From tag at the same time.



-- 
Iñaki Baz Castillo
<[email protected]>

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