Michael Quinn (quinnm@bah.com) Wed, 30 Nov 2005 16:16:35 -0500

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My understanding is that the "c-tone" is the same as that generated by the "C" button of the A-B-C-D/FO-F-I-P column found on old DoD precedence-equipped touch-tone AUTOVON phones. The C or I (for "Immediate" precedence) button delivers a DTMF pair of 852 and 1633 KHz. Ping me off net for some AUTOVON phone pics. Mike quinnm@bah.com > From: harold@hallikainen.com > Subject: Security Flaw Allows Wiretaps to be Evaded, Study Finds <snipped> > This is the first I'd heard of the "c-tone'. > Harold

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