I've been playing SR3 again after playing SR4 for some time. I've noticed that in SR3 (like in SR2), some homies can not be called to be a follower on certain instances (their phones will give out a busy signal). This is unlike in SR4, where homies can be asked to follow you almost anytime and anywhere even when you have an active mission in Steelport*, and even shortly after they were just dismissed or shortly after the homie / player character dies.
I know that homies can't be called as a follower most of the time when you currently have a mission active. But even if I don't have any mission active, some homies' phones still give out a busy signal when called. I also know that there's a cooldown period before you can call a homie again to be a follower after they have been dismissed.
In instances where I don't have a mission active, what causes the homies' phones to give a busy signal when called? And how does this work?
- How long is the cooldown period before you can call a homie again to be a follower after they have been called previously (after being dismissed or after the homie / player character dies)?
- Are there locations where you can't call a homie to be a follower?
- Are there certain events (not necessarily active missions) where homies won't be able to be a follower?
* Actually "Fake Steelport" or "the Simulation"