Method for controlling a hands free system, radio apparatus,...

Details Method for controlling a hands free system, radio apparatus,... Method for controlling a hands free system, radio apparatus,...

2007-02-06

2007-02-06

Feild, Joseph (Department: 2617)

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

C455S569200, C455S567000, C455S011100, C370S329000, C370S341000, C370S331000, C370S242000, C370S264000, C370S268000, C370S269000, C370S287000, C370S322000

Reexamination Certificate

active

10952797

ABSTRACT:
A radio apparatus, to be used as a first ending node of a communication network, is connectable to a hands-free apparatus by a local radio link to form a hands-free system. A call made on the hands-free apparatus for an second ending node in the communication network is sent to the radio apparatus through a control channel on the local radio link. The radio apparatus and the hands-free apparatus arrange a voice channel to be established on the local radio link. The call is then sent to the second ending node. In a case where no voice channel is established within a predetermined time period after arranging the voice channel, the radio apparatus cancels the call to prevent a connection between the radio apparatus and the second ending node from being kept and charged.

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European Search Report dated Jul. 22, 2005, of European Application No. 4255963.3.
Bluetooth SIG, “Hands-Free Profile Adopted Version 1.0”, pp. 1-73, (Apr. 29, 2003).

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