To provide a call system for surely calling customers.
A call card and a call receiver which are given corresponding IDs are used. When the content of an order is complete, the ID of the call card is read and a call signal is sent to the call receiver given the corresponding ID, to inform a customer of the call, either by means of sound or light. Once the call receiver is carried to a place where the call is made, the ID of the call receiver is compared with the ID of the call card for checking. This configuration not only allows reliable calls but also makes it possible to check the content of the order upon the call, check the content of the order at a work site as necessary, avoid false calls, and avoid wasting the battery of the call receiver.
| JPH05233886 | CARD HANDLER |
| WO/2001/026047 | PACKAGE PRINTING SYSTEM WITH RFID WRITE/READ CAPABILITY |
| JP2011103610 | RECEPTION METHOD, RECEPTION DEVICE, NONCONTACT IC CARD, AND READER/WRITER |
MUNAKATA TATSUHIKO
OKADA SHUSUKE
PAAMU KK
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