Patent ID: 6208872
Filing Date: 2001-03-27
Classification: H04W

Abstract:
A method of placing a phone call from an originating mobile station to a group of receiving stations collectively having a group identification number, said method comprising the steps of:(a) providing a first permission for said originating mobile station to place calls to a first group identification number while roaming and providing a second permission for said origination mobile station to place calls to a second group identification number;(b) initiating a call at the originating mobile station to a selected one of said first and second group indentification numbers;(c) determining if the originating mobile station is in a roaming condition;(d) if the originating mobile station is roaming as determined at step (c), determining whether said first or second permission associated with said selected one of said group identification numbers permits the originating mobile station to place calls to the selected group identification number while roaming; and(e) if the originating mobile station is permitted to place calls to the selected one of said group identification numbers while roaming as determined at step (d), placing a call to a selected group of receiving stations defined by the selected group identification number.