| 摘要 |
Each of wireless communication terminals UA10 and UA20, capable of using a plurality of different wireless communication systems in accordance with the present invention, are provided with a transmission unit 110 for transmitting a call request including information on a condition of a wireless communication system desired by a calling side by use of a predetermined wireless communication system and a control unit 120 for controlling, when information that the called side uses the wireless communication system not satisfying the condition of the wireless communication system desired by the calling side is received in response to the call request transmitted by the transmission unit 110, to retransmit the call request based on the received information on the wireless communication system used by the called side by use of another wireless communication system different from the predetermined wireless communication system.
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