Other carriers supply this feature. I need it to facilitate calling congress to lobby for my views. Phone lines are often busy for long periods of time. Automatic redial would give me the option of getting some work done while I'm trying to connect.
My 40+ year-old phone has a redial button on it (it's one of those old princess phones).
With my 10-year-old phone I can re-dial any of the last 10 calls I made.
Your phone doesn't allow you to redial?