| 摘要 |
The present invention relates to an arrangement and a method, respectively, for surveillance of queue numbers when serving said queue numbers sequentially, comprising: an input device (3; 8), an output device (4) controlled by said input device for outputting a queue number on a queue number ticket, a registration device (5) for receiving a telephone number and a queue number or a point of time associated to a queue number, and a call device (5) for calling said telephone number when said queue number is estimated to be served within a predetermined period of time.
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