I recently had Skeds call me just after a trip and assign me another trip the next morning with a report time that was 12+30. I told them since I was back on long call, it was an illegal assignment. The scheduler put me on hold and came back with a Field Standby assignment that started in 12hrs. When I woke up the next morning to head to the airport for FSB, that trip was on my schedule. Right at FSB report time, Skeds called and assigned me the trip.