Call-up using the whole phone number.
It is always possible to call a user by pressing the B button followed by the phone number. For example, B0701234567.
If the phone number with a leading zero is used, activate Permit dialling code plus phone number (Settings -> Entry Phone- > General - > Phone Number).
Remember: The phone number with a starting foreign prefix cannot be called this way. Foreign phone numbers can only be called using a Short number or name list.