Our inpatient unit is an 18-bet unit. On the weekends, we have an attending, a resident, and a moonlighting midlevel who is responsible for seeing 4-5 follow-up patients that are selected by the primary team as "moonlighter appropriate" (i.e., very stable with few expected changes in medication regimen over the weekend). Only faculty that work on the inpatient unit are responsible for covering call. Call is essentially on a "volunteer" basis in the sense that, while there needs to be coverage each weekend, we do not have any difficulties getting the faculty group to cover weekend call. The call schedule is created in several-month blocks in advance. Each service is responsible for covering its own service - i.e., the inpatient group is not responsible for covering consults (ED or otherwise) and vice versa.
Pay is $1000/day, more if there is no moonlighter and you are responsible for seeing those patients. While some days can be busy - especially if there are multiple admissions overnight and a full unit - generally people work from 8am to 4-5pm and sometimes finish significantly earlier depending on the volume and ratio of follow-ups to new admissions. All and all, not a bad weekend. For the consult service - which also covers the ED - one of the faculty works on a Friday-Monday schedule, so that is simply that person's normal work schedule.