To the original poster:
I'm not sure whether your dad will call back. He obviously has a lot of serious, deep seeded issues. I do think it was really brave of you to call, and one thing is for sure - at least you won't have any regrets. You made an effort to reach out, and that is all you can do. The rest is up to him, and out of your control. Even if he doesn't call back, at least you won't be left to wonder for the rest of your life, "What if I tried calling?"