Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site ucbvax.ARPA Path: utzoo!watmath!clyde!cbosgd!ucbvax!info-vax From: info-vax@ucbvax.ARPA Newsgroups: fa.info-vax Subject: Security Message-ID: <3991@ucbvax.ARPA> Date: Wed, 2-Jan-85 06:06:03 EST Article-I.D.: ucbvax.3991 Posted: Wed Jan 2 06:06:03 1985 Date-Received: Thu, 3-Jan-85 03:58:34 EST Sender: daemon@ucbvax.ARPA Organization: University of California at Berkeley Lines: 8 From: Allan A. MillerI have seen security devices that allow dial-in lines, but respond to calls by asking for the caller's phone number, hanging up, and then calling back only numbers that are in a list of "authorized" callers. It seems like this would be pretty easy to do with a phantom that watches a TTY line connected to a Hayes modem (or any modem that can do dialing, for that matter). Has anyone seen a program that does this and runs under VMS?