Hello. I have an old memory bugging me -- perhaps someone can confirm for me:

I seem to remember the 1a2 key system at my childhood elementary school labeling the rightmost key "LOCAL" instead of "ICM" for intercom.

One would activate that key and then use a buzzer pad mounted to the right of the phone to signal the other party to join the common circuit.


Can anyone confirm that was sometimes/often/rarely/never the practice back in the day?


Thanks! /jim