>
>you can dial a pulse telephone by hand by banging on the hook, i've done
>it and dialed 2 digits of a number for a computer from a terminal that
>had a lock on it's phone so you "couldn't" dial 9 to get off campus and
>make long distance calls.  phone pulses are at 10hz, and the dials have
>governors to regulate the speed.  it's a pain to dial by hand, and it
>would take real practice to dial 7 digits by hand, but i've done 2 out
>of 7 with fair repeatability.

I've done 7 out of 7 repeatably, but look up the tolerances.
Pulse dialing cadence is very forgiving.


>  so if the frequency is 10 or 15 hz, doing
>it by hand should be possible.  there may also be old systems and newer
>systems with the newer systems being more sophisticated and harder to
>cheat, they may even require 2 frequencies that have a phase locked
>relationship.

The current systems are coded to recognize many individual IDs.


>best not to mess with this system unless you have a good reason, most
>juries and judges would rightly hang you out to dry if you were caught.

I agree. You'll note that I never gave any frequencies?

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