Telecommunications – Radiotelephone system – Special service
Reexamination Certificate
2006-10-17
2006-10-17
Taylor, Barry (Department: 2617)
Telecommunications
Radiotelephone system
Special service
C455S401000, C455S567000
Reexamination Certificate
active
07123903
ABSTRACT:
In a related art mobile telephone system, the generation of an RBT (ring back tone) and a busy tone is realized by transmitting data registered in a network system to a calling telephone. In a mobile telephone system according to this invention, RBT data and the like are previously registered in a called telephone, and when a calling telephone originates a call to this called telephone, data corresponding to an operating state of the called telephone is transmitted to the calling telephone. Accordingly, an RBT and the like can be easily changed with a user's original melody or the like, whereby it is possible to improve service for the user.
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Mitsubishi Denki & Kabushiki Kaisha
Taylor Barry
LandOfFree
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