>>Is it valid?

it's valid in that it's parseable but obviously it's not standard.
And since it's different from "sip:[EMAIL PROTECTED]",
it's unlikely it will have the desired effect.

>>does each SIP implementation choose its own hidden URI?

All should use "sip:[EMAIL PROTECTED]" but
it wouldn't surprise me if others used other non-standard
anonymous uri's.




 

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Iñaki Baz 
Castillo
Sent: 18 June 2008 12:21
To: [email protected]
Subject: [Sip-implementors] "sip:[EMAIL PROTECTED]" is the correctway to hide 
the caller?

Hi, RFC 3261 says that a UAC wanting to hide its identity should use a From 
like this:

  sip:[EMAIL PROTECTED]

Is it the unique correct way to do it? For example, when I receive a call from 
my carrier gateway (Nortel CS2K) with "Privacy: id" the From is:

  sip:[EMAIL PROTECTED]

Is it valid? does each SIP implementation choose its own hidden URI?

Thanks.


--
Iñaki Baz Castillo
[EMAIL PROTECTED]

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