CELLULAR PHONE FEATURE TO PROTECT USER AGAINST ACCIDENTAL ROAMING CHARGES
Original Publication Date: 1999-Jun-01
Included in the Prior Art Database: 2002-Aug-16
Roaming indicators displayed on existing cellu- lar phones do not provide adequate warning against accidental roaming charges. When using a cellular phone within the local service area, a user may experience a loss of the local carrier signal tem- porarily, and pick up a competing "roamer" system signal without knowing it.