| 摘要 |
The present invention relates to an interface controller that integrates an existing telecommunication device, a door answering system and a headset base all set up in a restaurant. Based on the operation modes performed by the interface controller, a remote order center can talk to the customers in the restaurant through the telephone system. In another aspect, if there is no response received from the remote order center, the customers can directly have service from local personnel of the restaurant.
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