I want to use old phones not connected to the BT line to operate remote equipment. I need to decode the separate tones to drive diferent relays.
2006-12-20 09:05:11 · 4 answers · asked by bwadsp 5 in Consumer Electronics ➔ Land Phones
http://www.bobblick.com/techref/projects/tonedec/tonedec.html
http://www.dschmidt.com/dtmf.html
http://search.ebay.com/dtmf-decoder_W0QQfnuZ1QQfsooZ1QQfsopZ3QQxpufuZx
2006-12-20 09:16:42 · answer #1 · answered by Double O 6 · 2⤊ 0⤋
What a strange question, however stranger still I maybe able to help you. Whilst I do not have the website address now. If you were to type in GPO into your search engine, you will come up with the info you need.
Good luck!
Edit: found this website though whether it will be any good if you live in America. Anyhow you can always try http://www.wppltd.demon.co.uk/WPP/Wiring/UK_telephone/uk_telephone.html
2006-12-20 17:09:11 · answer #2 · answered by Anonymous · 0⤊ 0⤋
you can buy what we call a "digit grabber", they aren't very cheap though. It will capture the DTMF tones.
2006-12-20 19:35:25 · answer #3 · answered by Dan H 2 · 0⤊ 0⤋
ebay
2006-12-21 13:42:23 · answer #4 · answered by munchie 6 · 0⤊ 1⤋