| 摘要 |
A communication system includes a communication device and a relay apparatus that are connected to a network, to which an external service is connected. The communication device includes a communication unit and a controller configured to perform a first transmitting process and an outputting process. The relay apparatus includes a communication unit and a controller. The controller of the relay apparatus is configured to perform a first receiving process, a second transmitting process, a first getting process, a first instructing process, a second receiving process, a second getting process, and a second instructing process.
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