From: crunch@netcom.com (John Draper)
Date: Fri, 5 Feb 93 11:01:06 PST
To: cypherpunks@toad.com
Subject: RE: 'Sunday Times' article on GSM changes
Message-ID: <9302051857.AA06134@netcom3.netcom.com>
MIME-Version: 1.0
Content-Type: text/plain



>What makes you think they don't have the same kind of REMOB/BLV capability
>to the cellular telephone switches?  I mean, if a conversation is scrambled
>from the mobile phone to the switch over the radio, it must be unscrambled
>at the switch before it can be transmitted over the trunk lines into the
>PSTN network, and that's where the FBI places their tie-lines and REMOB
>units.

As far as I know,   most cellular interfaces to the BOC system is
digital.    But I suppose there might be some interface somewhere.
I'll put a few "feelers" out and see what I come up with.

JD

(Scuse line noise..)