How do I get actions from a telephone-type keyboard's accessory buttons?

Question

Scenario: I'm working with an existing project that uses a telephone-based keyboard which has one or more stored phone numbers in its accessory view.

I'm told that this particular accessory view is non-custom, build in, de facto.

I understand that I can trap for each character input via a delegate.

Question: How do I capture the ACTIONS of the phone buttons so I can glean the numbers?

Answer 1

The source of the problem was the custom filtering of the host UITextField; not the keyboard itself. The event handler is actually the UITextField delegate.