Tones can be used for different purposes on each repeater.

However, my concern would be about 2 different repeaters

on the same RF frequency but with 2 different tones.

If ham A calls on one repeater with his tone and

another ham B is on the second repeater with his tone,

won't there be an interference problem?  Isn't there a ham organization

that prevents this from occurring if the repeaters are close to each other?

Marvin W4UXJ