Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!lll-winken!telecom-request From: dave@westmark.westmark.com (Dave Levenson) Newsgroups: comp.dcom.telecom Subject: Re: Caller ID RS-232 Interface Needed Message-ID: Date: 30 Mar 91 17:48:49 GMT Sender: Telecom@eecs.nwu.edu Organization: Westmark, Inc., Warren, NJ, USA Lines: 26 Approved: Telecom@eecs.nwu.edu X-Submissions-To: telecom@eecs.nwu.edu X-Administrivia-To: telecom-request@eecs.nwu.edu X-Telecom-Digest: Volume 11, Issue 257, Message 5 of 5 In article , gsipe@pyrite.nj.pyramid.com (George Sipe) writes: > (This may have been discussed before but...) > > I'm interested in Caller ID for my home, but would want an RS-232 > interface to it. A really stupid (and cheap) interface would be great > -- something that has no memory and simply sends the information out > the serial port (or into the bit bucket if nothing is connected or > paying it attention). Try ClassMate from MHE Systems. It is available from Bell Atlantic Business Supplies (they have an 800 number). For about $50 they give you a box the size of a cigarrette pack. It has a modular jack on one end, and a DB-25 on the other. You connect the modular jack to your phone line, and the other end to an RS-232 DTE device. The box is powered from the Carrier-Detect and Transmit Data leads of your RS-232 device, and it presents the caller-id information to you over its Received Data lead. (It looks like a simplex modem, receive-only.) Data output is fixed at 1200 bps, 7 data bits, with the parity bit forced to 0. -- Dave Levenson Internet: dave@westmark.com Westmark, Inc. UUCP: {uunet | rutgers | att}!westmark!dave Warren, NJ, USA AT&T Mail: !westmark!dave [The Man in the Mooney] Voice: 908 647 0900 Fax: 908 647 6857