Browse Prior Art Database

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
Document File: 1 page(s) / 47K

Publishing Venue

Motorola

Related People

Glenn Sterkel: AUTHOR

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.

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MOlOROLA Technical Developments

   CELLULAR PHONE FEATURE TO PROTECT USER AGAINST ACCIDENTAL ROAMING CHARGES

by Glenn Sterkel

  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.

  Even though the user may be able to pick up the local carrier again just a short distance away, he/she may hastily initiate a call without checking the roaming indicator display. In this case, if a call is made, roaming charges would be incurred unneces- sarily. Common cellular phone features such as speed dial, last # redial, etc. make this scenario even more likely.

  By enhancing the user interface of the cellular phone, this invention ensures a call cannot be acci- dentally initiated while the phone is roaming.

  An algorithm is added to the programming of the cellular phone unit, which does the following:

  1) When the "send" button is pressed to initiate any call, detect whether the carrier is "home" or "roam".

  2) If "roam" is detected, prompt the user (through the earpiece or other annunciator) whereby the user must press a keypad button to either accept or reject the placement of the call.

  3) If "home" is detected, the call is place as normal.

  This feature gives the cellular phone subscriber more control over their usage...