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Old 22nd Feb 2007, 8:01 pm   #3
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Join Date: Apr 2005
Location: Devon
Posts: 850
Default Re: Pulse (Loop Disconnect) to Tone (DTMF) Converter?

Well after a lot of searching it seems that one company in the US does indeed make such a unit, they call it the Pulse to Tone Converter, it can be seen here about 3/4 of the way down the page:

Oddly enough the reason that I want this is mobile phone related, I found a unit for sale on eBay which allows you to connect a regular telephone to the mobile network, but most of these units seem to only accept DTMF, I want to be able to use a 200 or 300 series telephone as a car phone, and so using the 12 volt supply from the car this is easily possible, all that is needed is the pulse to tone converter.

I have ordered one of these American units, so it will be interesting to see how well it works.

This is the type of unit I purchased from eBay (this listing is in no way related to me, I do not know the seller):

It seems that the use of vintage phones on the mobile network is possible, which is great news. Just imagine a candlestick phone as your car phone!
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