S.I.T.s (Special Information Tones)

Article View: mod.telecom

Article #155

#155

From: John Covert
Date: Sat, 19 Oct 1985 05:20

16 lines
994 bytes

The first two tones can vary, but the last tone is always the same.
This provides a binary encoding indicating four different meanings.
 
	Tone 1		Tone 2		Tone 3
  Low: 	913.8 Hz	1370.6 Hz
  High:	985.2 Hz	1428.5 Hz	1776.7 Hz
 
Low tone is always 274 ms, High is 380 ms
 
Category: Reorder	Low  High
	  Vacant Code	High Low
	  No Circuits	High High
	  Intercept	Low  Low
 
/john

Technical Details

Message-ID: <8510190236.AA00983@decwrl.DEC.COM>

Path: arc1-ca.pugleaf.net!utzoo!decvax!decwrl!ucbvax!castor.DEC!covert

Show Full Headers

Complete Article Headers

Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Posting-Version: version B 2.10.3 4.3bsd-beta 6/6/85; site ucbvax.ARPA
Path: arc1-ca.pugleaf.net!utzoo!decvax!decwrl!ucbvax!castor.DEC!covert
From: covert@CASTOR.DEC (John Covert)
Newsgroups: mod.telecom
Subject: S.I.T.s (Special Information Tones)
Message-ID: <8510190236.AA00983@decwrl.DEC.COM>
Date: Sat, 19-Oct-85 01:20:00 EDT
Article-I.D.: decwrl.8510190236.AA00983
Posted: Sat Oct 19 01:20:00 1985
Date-Received: Mon, 21-Oct-85 22:31:21 EDT
Sender: daemon@ucbvax.ARPA
Organization: The ARPA Internet
Lines: 16
Approved: telecom@ucb-vax.arpa