I remember reading an article recently that Australia made requiring workers to be reachable off the clock is illegal. IMHO, every country needs every worker to be:
1. Compensated for on call time 2. Be paid for overtime (No "You're salaried so we expect 45+") 3. Have the right, as an employee, to not respond when not explicitly on call without fear of retaliation.
1 + 3 require better changes to employer decimation law. As is, even if you know you were fired for unjust reasons, it's VERY hard to win a lawsuit as an employee.