Telecommunications – Radiotelephone system – Emergency or alarm communication
Reexamination Certificate
2004-08-11
2008-08-05
Cumming, William D (Department: 2617)
Telecommunications
Radiotelephone system
Emergency or alarm communication
C455S414200, C455S436000, C379S106090, C370S312000
Reexamination Certificate
active
07409202
ABSTRACT:
Systems and methods for managing a mobile communication device group. A communication device sends a message from a member of a sender group and a network transmits the message to the recipient group if the identity of the sender group exists in a communication permission parameter associated with the recipient group. Systems and methods for transmitting a message to a group of communication device users in an identified geographical area. A graphical display presents a geographical representation of an area. A selection tool for identifying one or more communication device users located within a defined area. The network transmits a message from a sender to the users located within the defined area.
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Cumming William D
Nextel Communications Inc.
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