On-call is paid at a weekly rate for being the on-call person.  There&#x27;s an additional bump if you&#x27;re actually called out, pro-rata on an hourly basis to your salary.<p>You are required to respond to calls within the SLA, and work on problems until they&#x27;re fixed (definition of fixed being service restoration - root cause canalysis for complex problems and hence fixes will happen during normal hours) or until you&#x27;ve been working long enough you need to be spelled.<p>If you&#x27;re on-call you&#x27;re still expected to be doing your day job, but production takes priority, and projects are expected to accomodate that.<p>On-call rotation is generally rotated around teams, so one week in 4 - 8 depending on team size.