Right, and in my situations, if the crisis that demanded I be brought in was solved, it was assumed/expected I'd be taking those hours out of my normal work hours. So maybe leaving early one day, or an entire day depending on the severity. On call hours were treated as a multiple vs one to one.

Seemed pretty sane/rational to me that I never minded being on-call. There were the occassion where I was not immediately available, but I notified everyone when I would be and got to work when I said I would.

I can see where this is ripe for abuse by either side, so I'm not trying to brush off those that are getting abused by it.