[VOIPSEC] VOIP for free??

[Andrew Graydon]

Brian, I was referring to ANI in the SS7 terminology, where it is the
Automatic Number Identification, which was unfortunately the wrong SS7
service to mention as it was outdated for callerid services which is now
based on LASS (Local Area Signalling Services) or as it is sometimes called
CLASS. CNID, the by-product service callerid utilises, is based upon this.
So apologies :)

Of course 911 services are not based on CNID but upon ANI which is passed by
agreement to emergency and state services. This, as the base service, is not
available to most consumer systems and CONNOT be blocked within the
specifications of SS7. This is what I meant.

Sorry for the confusion.

Andrew
_____

Andrew Graydon

Chair Security Requirements Committee 
VOIPSA

agraydon at voipsa.org
http://www.voipsa.org


-----Original Message-----
From: Brian Rosen [mailto:br at brianrosen.net] 
Sent: April 8, 2005 6:09 PM
To: securityrequirements at voipsa.org; Diana Cionoiu; Smith, Donald
Cc: voipsec at voipsa.org
Subject: Re: [VOIPSEC] VOIP for free??

Don't confuse callerid with ani.  You nearly always get ani, no matter what.

Current 9-1-1 systems don't handle international roamers well.  We're
working on upgrades for voip that will fix that.

Uninitialized mobile phones can call 9-1-1 but don't have a call back
number.  I don't think we will have that problem with voip.

Brian