Article View: sci.electronics
Article #5254Re: DTMF tones
From: Walter A. Koziarz
Date: Wed, 25 Jul 1990 17:48
Date: Wed, 25 Jul 1990 17:48
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In article <1990Jul25.125339.1665@focsys.uucp> brad@focsys.UUCP (Brad McCloy) writes: > > I also came across some undocumented but supposedly valid tones. >Anyone have an idea or care to guess what they do? >Fo = 697Hz & 1633Hz >F = 770Hz & 1633Hz >I = 852Hz & 1633Hz >P = 941Hz & 1633Hz > >watmath!focsys!brad No need to guess, these are 'special feature' keys on a U.S. Government Automatic Voice Network (AUTOVON) dtmf phone instrument. FO -- 'FLASH OVERIDE' F -- 'FLASH' I -- 'IMMEDIATE' P -- 'PRIORITY' I don't know what they DO; only what they ARE. Walt K.
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arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!ucsd!helios.ee.lbl.gov!nosc!halibut.nosc.mil!koziarzReferences:
<44900010@uxa.cso.uiuc.edu> <44900011@uxa.cso.uiuc.edu> <1202@gold.GVG.TEK.COM> <1990Jul25.125339.1665@focsys.uucp>Show Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!ucsd!helios.ee.lbl.gov!nosc!halibut.nosc.mil!koziarz From: koziarz@halibut.nosc.mil (Walter A. Koziarz) Newsgroups: sci.electronics Subject: Re: DTMF tones Message-ID: <2552@nosc.NOSC.MIL> Date: 25 Jul 90 17:48:59 GMT References: <44900010@uxa.cso.uiuc.edu> <44900011@uxa.cso.uiuc.edu> <1202@gold.GVG.TEK.COM> <1990Jul25.125339.1665@focsys.uucp> Sender: nobody@nosc.NOSC.MIL Reply-To: koziarz@halibut.nosc.mil.UUCP (Walter A. Koziarz) Organization: Naval Ocean Systems Center, San Diego Lines: 22 X-Local-Date: 25 Jul 90 10:48:59 PDT