Telecommunications – Radiotelephone system – Usage measurement
Reexamination Certificate
2004-01-09
2008-11-11
Eng, George (Department: 2617)
Telecommunications
Radiotelephone system
Usage measurement
C455S406000, C379S114160, C379S114150, C379S114200, C705S080000, C705S014270
Reexamination Certificate
active
07450928
ABSTRACT:
Methods for adding minutes to a calling plan having a calling plan period. The methods including determining whether a threshold number of minutes have been reached during the calling plan period; and incrementally adding minutes to the calling plan when the threshold number of minutes has been reached. The cost per minute of the added minutes is less than the high-cost per minute rate normally associated with exceeding the threshold number of minutes during the calling plan period.
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Henry, Jr. Coulter C.
Lazaro, Jr. Francis Richard
AT&T Mobility II LLC
Brandt Christopher M
Eng George
Henry Coutler C.
Knowlton, Esq. Paul E.
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