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Apr 19th, 2003, 01:40 AM
#1
Thread Starter
Fanatic Member
privatly operated phone system with caller id
I'm building a private phone-based intercom system using some phones, a BUNCH of RJ11 receptical (and other various parts) and a 9 volt power transformer.
I need to generate a caller id signal to the specific loop the a com is connecting to using the soundcard in my computer (very easy to patch into a phone system)
anybody know where i can find a) some sample caller id signals, and b) any info about caller id signals?
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For those who might be interested in developing a private operator-based phone system (the type they used in the fifteis), i found quie a bit of info at http://www.howstuffworks.com
do a search for telephone.
My system does not use dtmf or any extension numbers. When somebody pick up a com, a light goes on. Operator plugs headset into plug underneith light. Com user indicates which com the operator should onnect him to. Operator directly connects, using a two-conductor RJ11 wire, to the indicated com and presses the "ring" button. This steps the voltage on the line to 70VAC 60Hz.
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Apr 26th, 2003, 01:56 PM
#2
Hyperactive Member
HAHA! That is weird because I'm doing hte smae thing you're doing. I also got a lot of my informaiton from HowStuffWorks.com! I think phones are vary interesting and I've been playing around with them. Give me an IM on AIM. my screenname is Hp1.
Kevin Carpenter
Currently Working in the CAOS (CA Operating System) Group
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Apr 27th, 2003, 12:06 AM
#3
Thread Starter
Fanatic Member
actually, i don't have aim anymore... now i'm on yahoo
EmailJackSchitt (add me to your list as i'm not on very much)
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