I havea friend I call alot who changed their phone number. I had them on speed dial 2. I changed the number in my address book. But my speed dial still dials the old number. I had hoped it would change with the address book. Of course if I just hold down the 2 key it calls the old number so I can't use that to set the new number. How do I change the number on speed dial? It seems like it should be really basic and I'm missing something...