Path: utzoo!attcan!utgpu!watserv1!watmath!iuvax!mailrus!accuvax.nwu.edu!nucsrl!telecom-request
From: vances@xenitec.on.ca (Vance Shipley)
Newsgroups: comp.dcom.telecom
Subject: Re: Breaking the Dial Tone
Message-ID: <3622@accuvax.nwu.edu>
Date: 7 Feb 90 06:11:01 GMT
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Reply-To: vances@xenitec.UUCP (Vance Shipley)
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X-Telecom-Digest: Volume 10, Issue 84, message 7 of 11


In article <3542@accuvax.nwu.edu>72307.1502@compuserve.com (GORDON MEYER) 
writes:

>Now all is expected so far, but when my modem dials the rest of the
>string the dial tone continues.  In other words, it's as if the switch
>is now deaf to the rest of sequence.  If I try again it usually works
>fine...but then later that same night the problem may occur again. 

Touchtone recognition problems can be caused by the terminal (modem here) 
sending too loud a signal.  If the CO is too close, or the equipment is not
to spec, the signals can be distorted by shear loudness.   

>[Moderator's Note: It sounds to me like occassionally the CO is
>sending you the 'wrong' dial tone. ... 

>one of the paths extended to you for your call is either faulty, 
>misprogrammed, or belongs to rotary dial customers. 

>I'd suggest next time it happens you put the line on hold, call Repair
>and get them to trace it. 

Maybe the second dial tone source is more critical than the first, 
not recognizing the tones due to distortion.

Regarding getting a trace from the phone company, wouldn't the dial
tone (and consequently the circuit) be dropped long before you could
explain what you wanted?  Say in 15 seconds?


Vance Shipley                                         

[Moderator's Note: Yes, it probably would be. I suppose if he had a
rotary dial phone on the line, he could grab it, and dial a digit or
two to cut the dial tone; that would buy him some time, but not much.  PT]