Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Reexamination Certificate
2006-11-28
2006-11-28
Appiah, Charles N. (Department: 2617)
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
C455S343500, C455S432200, C455S550100
Reexamination Certificate
active
07142895
ABSTRACT:
A mobile telephone is arranged to detect when its battery voltage has fallen such that only the lowest segment of the four segment battery charge level bar of its LCD display is showing, and, in response, to transmit a “Restricted Delivery Mode” message to a predetermined network destination number, and then to disable its transmit function. An audio signal is generated to alert the user, and a warning message is displayed, e.g., Battery Low, Message Mode, Restricted Delivery Mode” is a selectable option via the telephone's menu. The mobile network, upon receipt of such a “Restricted Delivery Mode” message, sets a “Restricted Delivery Mode” flag in the user's profile. For an originating call the profile is accessed in the normal manner, and, if that flag is set, the network sends, e.g., a “Receive Only—Leave Message” announcement to the caller.
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Appiah Charles N.
British Telecommunications
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