Path: utzoo!attcan!uunet!cs.utexas.edu!sun-barr!newstop!texsun!texbell!vector!telecom-gateway
From: 89.KREMEN@gsb-how.stanford.edu (The Arb)
Newsgroups: comp.dcom.telecom
Subject: The Tone Which Announces Request for Card Number
Message-ID: <telecom-v09i0265m05@vector.dallas.tx.us>
Date: 30 Jul 89 20:45:56 GMT
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X-TELECOM-Digest: volume 9, issue 265, message 5 of 7

I am wondering about the "special tone" that one hears when
making a telephone credit card call using AT&T. Does anyone out know
at what frequency the tone is or is there even a standard?