SWA is 2 hour call out...always. No short or long call. You could be notified and be 2 minutes from checking in at ops and some jackwad would take your trip..
SWA reserve would have been much better if there was a long call. However, their trip trading ability was great. I could drop a single day or multiple days of reserve. A line holder could pick up a dropped reserve day. That feature was nice.