Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!wuarchive!texbell!vector!telecom-gateway
From: loren@amcom.UUCP (loren cahlander)
Newsgroups: comp.dcom.telecom
Subject: Re: Precise Dial Tone & A Tone of the Past: No-Such-Number
Message-ID: 
Date: 27 Sep 89 14:36:12 GMT
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Reply-To: loren@amcom.mn.org (Loren Cahlander)
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X-TELECOM-Digest: volume 9, issue 417, message 9 of 9

In article  Dave Troup  writes:
>X-TELECOM-Digest: volume 9, issue 406, message 1 of 12

>	Does anyone know what the recording alert tones are? You know-those
>	dee-doo-DOO, "The number you have reached..." What are the frequencies
>	to them.  Ive NEVER been able to find out what those are.

>	thanks in advance!

 From the documentation that I have, there are four different sequences
of tones:

			First Tone	Second Tone	Third Tone
Tone	Tone		freq   length	freq   length	freq   length
Name	Description	(Hz)   (10 ms)	(Hz)   (10 ms)	(Hz)   (10 ms)
======================================================================
 NC	No Circuit	985.2  38.0	1428.5  38.0	1776.7  38.0
	Found

 IC	Operator	913.8  27.4	1370.6  27.4	1776.7  38.0
	Intercept

 VC	Vacant Circuit	985.2  38.0	1370.6  27.4	1776.7  38.0

 RO	ReOrder		913.8  27.4	1428.5  38.0	1776.7  38.0


Loren D. Cahlander                                 AMCOM Software, Inc.
                                                   5555 West 78th St  Suite Q
UUCP:  uunet!rosevax!nis!amcom!loren               Minneapolis, MN 55435
                                                   (612) 829-7445