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From: telecom@ucbvax.UUCP
Newsgroups: mod.telecom
Subject: Re: Touch-Tone (tm) Line Charges
Message-ID: <8601150715.AA05040@ucbvax.berkeley.edu>
Date: Tue, 14-Jan-86 20:26:16 EST
Article-I.D.: ucbvax.8601150715.AA05040
Posted: Tue Jan 14 20:26:16 1986
Date-Received: Thu, 16-Jan-86 01:09:37 EST
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Organization: The ARPA Internet
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Approved: telecom@mit-xx.arpa

In article <8601090556.AA03648@ACC-SB-UNIX.ARPA> you write:
>GTE here (Santa Barbara, CA) charges $1.-/month, and I am

...

>actually COST them to DENY tone service. But does the facility to
>deny tone service actually exist ?
>
>Just wondering ....
>
>	Lars Poulsen @ Advanced Computer Communications
>	<Lars@ACC.ARPA>

    The facility DOES exist. Northern Telecom SL-1's, including the SL-100
 Central Office switch is programmable (from the keybd) on a line by line 
 basis for 10,or 20 pulses, digitone, or "true" DTMF, the switch doesn't
 care. Its all done in the software. 

             -Rodger Cloud