Last time I worked on call I was compensated 2 hours overtime for every time I opened the laptop, as well as a fixed rate for the week. I was also able to convert some of the fixed rate to days off the week after. Still, having to wake up multiple times each night wasn't worth any compensation to me. I suppose you're correct that compensation should be tailored to each situation, but the examples you give seem way too low to me. 350$ is nothing if there's any meaningful amount of incidents to handle. My company paid twice that, 10 years ago. I guess it would be ok if nothing really ever happens.