This has only been beat over and over again.
It’s 3 hours ready to push.
This isn’t “essentially a 2 hour call out”
This isn’t “45 minute show so it’s a 2:15 hour call out with a 45 minute show time”
This isn’t “plane is ready to push in 3 hours”
It’s “the pilot will arrive at the aircraft and be ready to depart within 3 hours of receiving notification of the trip”
You have 15 minutes to call scheduling back when notified of the trip, that isn’t not counted in the 3 hours time.
There is no definition of what “ready to depart” means. So if you can be ready to depart in 5 minutes after taking your seat, there you go. Plane can push late, it’s pilot ready to depart.
It’s all covered in the new hire guide on the Alpa website.