Path: utzoo!attcan!uunet!cs.utexas.edu!rutgers!att!cbnewsh!ijk
From: ijk@cbnewsh.ATT.COM (ihor.j.kinal)
Newsgroups: sci.electronics
Subject: Re: How can I restrict outgoing phone calls?
Summary: No outgoing calls from a phone
Message-ID: <1230@cbnewsh.ATT.COM>
Date: 7 Jun 89 16:59:29 GMT
References: <778@tetons.UUCP> <244@csense.UUCP> <2437@rayssdb.ray.com>
Organization: AT&T Bell Laboratories
Lines: 26

In article <2437@rayssdb.ray.com>, iws@rayssdb.ray.com (Ihor W. Slabicky) writes:
> 
> Buy a touchtone phone, take out or disconnect
> the touchtone pad, and hook up the phone to the 
> line.  You'll be able to receive all the calls
> you want, but can't dial out.

Yes, but a really determined person could:

1).  By a tone-generator dialer [e.g. from Radio Shack for perhaps $20].
	[I wonder if you could install a filter to eliminate the tones???]

2).  Even use switch-hook dialing [difficult, but I guess all they would
have to do is get the operator.


If you really want to be secure, it might be difficult. Perhaps for
some dollars, the phone company could provide a non-outgoing line.

Perhaps this should really be in the telecom section.

Ihor Kinal

P.S.  Although I work at Bell Labs, I'm a software person.

P.P.S.  Nice to see another Ihor on the net.