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A  DIAL-TELEPHONE  LOCK

 

With this little DIAL-LOCK it was supposed to lock the telephone
against unwanted use ...

BUT (1st) With locking the "2" it was possible to dial the
          "112" = FIRE & EMERGENCY NUMBER in Germany

BUT (2nd) As a trained student of "Communication Engineering",
          you know the rhythm how to HIT THE FORK to make the
          DIAL-PULSES of the number you needed NOW ...

          ... see e.g.  THE DIALER'S PULSE-DIAGRAM ...

impressum:
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© C.HAMANN   http://public.beuth-hochschule.de/~hamann   09/09/09