Article View: sci.electronics
Article #10095Call number ID
From: kujanpa
Date: Tue, 12 Feb 1991 22:41
Date: Tue, 12 Feb 1991 22:41
20 lines
944 bytes
944 bytes
Hi everyone. A friend has been having problems
with prank phonecalls. He was wondering if there is a
circuit/schematic that would display the calling (ie.
incoming) number. I know there are commercial units that
will do this, but he is a broke EE student.
The questions are:
1) Can this be easily done?
2) What wires are required, and what signals are on these
wires.
3) What protocol is used for this?
Thanks in advance!
Bob Kujanpaa
Please respond vi e-mail.
kujanpa@ccu.UManitoba.CA
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arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!uunet!bonnie.concordia.ca!ccu.umanitoba.ca!kujanpaShow Full Headers
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!uunet!bonnie.concordia.ca!ccu.umanitoba.ca!kujanpa From: kujanpa@ccu.umanitoba.ca Newsgroups: sci.electronics Subject: Call number ID Message-ID: <1991Feb12.224124.12551@ccu.umanitoba.ca> Date: 12 Feb 91 22:41:24 GMT Sender: kujanpa@ccu.umanitoba.ca Distribution: na Organization: University of Manitoba, Winnipeg, Canada Lines: 20