| 摘要 |
<p>A communication system (1) comprises: a beverage preparation machine (10) having a data-exchange communication module (11, 11'); a service unit (30) that is distant from the beverage preparation machine and that is arranged for exchanging data with the communication module of the beverage preparation machine; a transmission arrangement (15, 20, 35) for transmitting data between the data-exchange communication module and the service unit. The data-exchange communication module of the beverage preparation machine comprises a sound-interface (11, 11') for exchanging data as a sound signal. The transmission arrangement comprises a telephone device (15) for transmitting this sound signal of the data towards the service unit and/or originating from the service unit.</p> |
