The way it should be.
^^^
We don't take any formal call in my group, and we won't apply to be on staff or bring our elective to one hospital system that requires all staff DPMs all being on call schedule. They can have their FTE podiatrists do that evening and weekend work; we have plenty of other options in terms of places to do our cases or admissions. A few of the competing PP DPM groups take call to pick up new patients via ER and consults since they are trying to build, and that's their choice. I will do infrequent ER or floor consults at my location within a hospital, but they know there is no guarantee I will respond fast or respond at all since I might be on vaca, other location, or just not interested. I would rather just market and get good results to get patients and keep patients than chase patients wherever they may be.
As was said, if you're a DPM employed at the hospital with clinic at the hospital, it is a much different story... you're already there, and it is an expected part of your job. I have been in both situations, but to try to pick up a lot of inpatients and inpatient cases when you are PP - even if you have a clinic attached to the hospital - is almost never an efficient use of your time (assuming you have anything else productive to do).
In any business, you want clients or deals or buyers or whatever to come to you. You also want fewer clients or deals and more money per deal or client or whatever the business type dictates. As it applies to medicine, this is why you see any PP doc doing a lot of marketing and possibly some call, inpatient, etc in the early going. After they have enough patients, they close or mitigate their office locations with bad payer demographics or under-booked days, they avoid the hospital unless absolutely necessary (patients known to them), and they trim payers. They might narrow their scope. Some of them keep those locations and services and payers... and hire associates to do that work. Regardless, the goal is to increase per patient revenue and patients per day... to maximize per hour income (and max free time).