Salaried doesn't mean indentured servitude, though. Yes, I agree, if it was part of your initial employment that you will be on call for 24x7 support, you'd better figure that into your salary and just shut your piehole. However, many of us either a) used to be compensated separately for on call time or b) used to not have a 24x7 system, and were charged with one while maintaining the same position in the company. I'm actually at the unique intersection of both of these. I used to not have any 24x7s when I took this job, and once I agreed to take one on, there was compensation for disrupting my life for the weeks I got stuck with the pager (1 hour comp for every 8 hours on call, plus 1 for 1 recall time)
About two months ago, we all just got totally boned by a policy shift. Now they expect me to do it for nothing, and where I work, that means I'm no more than 15 minutes from being able to log in and I'm dead stone sober (meaning, a BAC of as close to 0.00% as you can get...). The only upside is that I get a minimum of 4 hours comp for every call. It certainly hasn't encouraged me to fix any bugs, since I enjoy the extra vacation and they're usually quite easy to deal with.
Ever seen the Dilbert where the boss offers an incentive payment for every bug fixed? Wally wanders off saying something about writing himself a new minivan. That's basically what they've created around here, and pissed us all off in the process. It's certainly not an incentive to make the pager quiet, just to make the bugs require minimal attention.