Comment by noisenotsignal

4 engineers for an entire phone company sounds scary. I’m sure your engineering is robust enough such that outages are minimal, but that still sounds like a lot of on call (rotation of 4 = once a month?). Even if you only get paged once every few months, you still need to worry about getting paged until your shift is over! Even if you don’t worry in the psychological sense, you still have to schedule around it.