To provide a means for realizing communication by allowing a cellular telephone equipped with Bluetooth (R) to utilize an apparatus equipped with Bluetooth (R) as a repeater while considering spread of apparatuses equipped with Bluetooth (R), VoiceoverIP and the Internet regular connection, and to realize inexpensive communication means by using this means. Bluetooth搭載機器、VoiceoverIP、インターネット常時接続の普及を鑑みて、Bluetooth搭載携帯電話がBluetoothを搭載した機器を中継器として利用し通信を実現する手段を提供する。 - 特許庁