See also:

Entering a phone number
Dialing a number When entering phone numbers, you can switch between entering letters and numbers. Service numbers can be entered more easily, e. g. 1-888-BMW-CARD. 1. "Telephone". 2 ...

Telephone
...

Deleting the button assignments
1. Press buttons 1 and 8 simultaneously for approx. five seconds. 2. "OK" ...