Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 27, 2007
Patent Application Number
09549450
Date Filed
April 14, 2000
Patent Citations Received
Patent Primary Examiner
Patent abstract
A method for determining whether a particular service is provided by a cellular service provider comprising: listening for a page which includes a particular number plan area code (“NPA”) in a first frequency block; if the page is not heard in the first frequency block within a specified time period, listening for a page in a second frequency block which includes the particular NPA; and determining that the service is provided in the frequency block in which the page is sensed.
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