| 摘要 |
There is provided a communication system, communication apparatus, and control method. A first communication terminal includes message transmission means for transmitting a first or second message to a second communication terminal in response to an on/off operation for a power supply. The second communication terminal includes: first power supply control means for turning off a main power supply at reception of the first message; second power supply control means for turning on the main power supply at reception of the second message; mode setting means for setting communication means to a receive-only mode at reception of the first message, or setting the communication means to a mode capable of transmitting and receiving at reception of the second message; and sub-power supply providing means for providing a sub power supply for driving the second power supply control means during power-off of the main power supply of the second communication terminal.
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