I think they are wanting you to work 2 jobs and paying you for one. A normal on call position, at least where I come from, is either Monday thru Thursday 5p-8a. OR Fri-5p-Mon 8a. not both. When do they want you to see this case load, in the middle of the night, or are they wanting you to work before 5p also.
No way would I accept this. I don't mind working extra, but they better expect to pay for it. I am weekend on call fri-mon. after 8a on Monday, if I see a pt, they pay me per visit.
If they want you to carry a case load, that would mean alot more paperwork, going to IDt meetings, recerts. Are they going to pay you for your extra time? It sounds like a great deal for them, but a very bad one for you.
It would also put me on guard about this company. It sounds like they do not care about the employees, just how much work they can get out of them.