Guest Pager system use in Coffee store

1)Guests come to the coffee and make an order.

2).The waiter gives each guest a coaster pager, every pager has ID number on it.

3)When order is ready, the waiter at the counter will press the number on the transmitter.

4).The corresponding pager gets the wireless signal and begins to vibrate, flash or sound.

Then the guest knows coffee is ready and goes to the counter to take it.