Importance

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Abstract

The present invention provides a configuration, a control method and the like for a master communication device in a wireless LAN system in which a single wireless line is used, and when a telephone apparatus outside the network originates a call to the LAN, the originated call once arrives at the master communication device and wireless telephone communication can be established between that telephone apparatus and a slave communication device through a host station without relaying through the master communication device, and does not require particular processing such as authentication on the host station side. The master communication device 1 normally turns on a transmission/reception means 5 to perform location registration for a base station based on an ID set for the transmission/reception means to be in a line usage state in which wireless telephone communication with a telephone apparatus outside the network is possible, and when a reason of terminating control delegation to any of the slave communication devices 2 occurs during wireless telephone communication with a telephone apparatus outside the network in the line usage state, the master communication device 1 transmits, from a short-range wireless communication means 4 to any one of the slave communication devices which is a subject of control delegation, a terminating control delegation signal for permitting turn-on of the transmission/reception means based on an ID of the wireless telephone line and for permitting wireless telephone communication to be performed with the telephone apparatus outside the network with which the master communication device has performed the wireless telephone communication in the line usage state and turns off the transmission/reception means 5 to enter an output prohibited state in which output of a wireless signal is prohibited, and performs control to again turn on the transmission/reception means 5 to return to the line usage state when a control delegation completion reason occurs in the slave communication device to which terminating control has been delegated in the output prohibited state.

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First Claim