Diomidis D. Spinellis articles in the USENET Newsgroup uk.telecom
How to decode DTMF tones (was BT technology at fault on itemised bills)
(21 Apr 1993 15:44:58 GMT)
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Unless otherwise expressly stated, all original material on this page created by Diomidis Spinellis is licensed under a Creative Commons Attribution-Share Alike 3.0 Greece License.