RE: Terminating Unauthorized Connections

I think you may be able to do this on the PABX itself.
It does depend on the system-do you have a good 'map' of the network?
On our system we can put codes in to each extension to disallow calls of a
certain nature or to certain places etc. 

-----Original Message-----
From: listbounce@securityfocus.com [mailto:listbounce@securityfocus.com] On
Behalf Of Mister Dookie
Sent: Tuesday, July 24, 2007 7:24 AM
To: security-basics@securityfocus.com
Subject: Terminating Unauthorized Connections

Hey list,

Is there a program or method out there, if you know the telephone
number and extension, for you to use a modem at a remote location and
kick out some specials commands or garbage (noise, whatever) that will
disconnect a modem at another location within the enterprise? We are
looking for a method of terminating connections out of the enterprise,
such as fax machines and data modems that are no longer supported by
the organization and could be a source of data leakage since they do
not fall under our network policy. Something that would pretty much
monitor the company PBX and disconnect any modems that are trying to
connect out. Any suggestions?

Thanks! Regards, John