Re: Decoding Pulse Telephone
Its a long time since I did my BT apprenticeship (40 years!) and I no longer have any of my notes but this thread triggered something in my brain about the minimum Inter Digit Pause being 450mS as that is the amout of time that was needed for a strowger switch to detect the end of the dialled digit and sweep the bank looking for a free outlet. If its a rotary dial tone you wont be able to get the minimum below about 1 second as thats how long it takes to turn the dial for the next digit but if its Pulse Dial push button phone then the minimum Inter Digit Pause will be determined by the dialling chip in the phone.
Keith
www.diyha.co.uk
www.kat5.tv
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