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CELLULAR PHONE FEATURE TO PROTECT USER AGAINST ACCIDENTAL ROAMING CHARGES

IP.com Disclosure Number: IPCOM000009339D
Original Publication Date: 1999-Jun-01
Included in the Prior Art Database: 2002-Aug-16

Publishing Venue

Motorola

Related People

Authors:
Glenn Sterkel

Abstract

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.