[SIPForum-discussion] INVITE Anonymous

[nitin kapoor]

Yes agreed with James. Both are correct Technically.


Because sometimes, merely changing the username will not be enough to
conceal a user's identity.  A user's SIP service provider might decisively
reveal a user's identity (if it reflected something like a smallcompany or a
personal domain).  So in this case, even though the URI in the From header
would not dereference  to the anonymous user,  humans might easily guess the
user's identity and know the   proper form of their address-of-record. And
for these reasons, the hostname value 'anonymous.invalid' SHOULD be used for
anonymous URI . The full recommended form of the From  header for anonymity
is (note that this From header, like all others,  MUST contain a valid and
unique 'tag=' parameter):



  From: "Anonymous" <sip:anonymous at anonymous.invalid>;tag=1928301774


Please refer to  "4.1.1.3 URI Hostnames and IP Addresses" part  of RFC 3323
for more info.


Thanks,

Nitin Kapoor

2009/5/12 Garron, James <jgarron at sonusnet.com>

>  Pablo, I think that both are technically correct, but per RFC 3323
> (section 4)
>
>
>
> From: "Anonymous" <sip:anonymous at anonymous.invalid>;tag=1928301774
>
>
>
> is the recommended form.
>
>
>
> Jim
>
>
>  ------------------------------
>
> *From:* discussion-bounces at sipforum.org [mailto:
> discussion-bounces at sipforum.org] *On Behalf Of *Pablo Gargini
> *Sent:* Sunday, May 10, 2009 9:08 PM
> *To:* discussion at sipforum.org
> *Subject:* [SIPForum-discussion] INVITE Anonymous
>
>
>
> Hi
>
>
>
> Which of the two options is correct
>
>
>
> From: "Anonymous" sip: anonymous at anonymous.invalid;
>
>
>
> o
>
>
>
> From: "Anonymous" sip: anonymous at 192-168.10.4;
>
>
>
> thanks
>
> Pablo
>
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