I suppose that could be true in small organizations... not a problem in a more regimented on-call setup. My phone is on alarms-only at night when I'm not on-cal

I suppose that could be true in small organizations... not a problem in a more regimented on-call setup. My phone is on alarms-only at night when I'm not on-call, so they cannot physically call me :) I suppose people could still ask during the day, but generally in a good on-call culture it's frowned upon (unless you own the component or it's an all-hands-on-deck emergency where extra hands are actually helpful).