: Cassie Carstens wrote: > > > > Does anybody have some specs or pointers to Telephone Pulse Dialing > > > protoc. Pulse timing, interdigit times and so on. > > > > > >> Mark is 33.3ms, space is 66.6 ms > > >> You will find it fairly international. > > >> > > > > Anyone have the min. interdigit time > > > > Peter Cousens > > After posting the original question, I looked for more info and is > also interested in the min/max digit pulse and of course the > interdigit times. It is very simple to get a pic to do pulse dialing > and most of the newer exchanges can handle pulse dialing. I read that > the modern PABX/ exchange can also handle a much higher pulse rate > (bit rate ?) so that the waiting to get connected is about the same > as tone dialing. Where is the specs ??? > > Kind regards > Cassie I'm making a pulse reader so the min. interdigit time is important to me (anyone done this before or know of any sites) I assume it would be around 500ms for a modern push button phone but what's the minimum I can expect ? -- Peter Cousens email: peter@cousens.her.forthnet.gr phone: + 3081 324450, 380534 snailmail: Folia, Agia Fotini, Karteros, Heraklion Crete, Greece.