^^^^ works fine Eddie when using the Recent Call List or the preset numbers but not from the Phone Book List. I only ever phone a couple of numbers while driving, receives ALL calls fine and displays ALL the the caller ID's fine. It knows (the RCD510) those numbers and recognises them, matches them with the numbers in the Phone Book but still can't use those numbers from the Phone Book, most strange.
@WOLVERINEMAC
I am using an iPhone, not sure what your using, I really must try another type of phone and see if it works through the Phone Book.