@atax1a
also the ontoillogical and offtoillogical planes
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the existence of the ontological plane implies the existence of the offtological plane -
Did the Bell System ever use the fourth DTMF column (1633 Hz, for A, B, C, and D, or FO, F, I, and P) for anything other than Autovon?@atax1a
Interesting.If they did that back in the olden days, they'd only be able to dial such a number from the same exchange, because MF signaling could only outpulse zero to nine. Maybe SS7 can send those.
For the same reason, an Autovon phone number couldn't contain FO, F, I, or P.
And of course, the same goes for * and # (the latter being A in Autovon). -
Did the Bell System ever use the fourth DTMF column (1633 Hz, for A, B, C, and D, or FO, F, I, and P) for anything other than Autovon?Did the Bell System ever use the fourth DTMF column (1633 Hz, for A, B, C, and D, or FO, F, I, and P) for anything other than Autovon?