>>1132178>>1132179Call time is the lead time you get between when the railroad calls you for a job, and the on-duty time. E.g. if the on-duty time for your train or job is 3:00, your call should come in around 1:00.
Not sure about other places, but ex-Frisco lines have an hour and a half call time which is probably standard. Some may be as little as an hour. Anyway, I found that 2 hours was about perfect--you had plenty of time to pack your grip, get a shower, grab some food for the trip and not feel rushed. An hour and a half call felt a lot more restricting.