How to manage a long waiting queue in restaurant/clinic/service centre?

In Singapore, we noticed that many restaurant/clinic/service centre/etc usually forms a long queue either waiting for table or seeing a doctor or waiting to be served.

It seems that none of the owner are keen to look into a better system to resolve such unpleasant situation. In fact, you will notice that loss of business due to frustration queuing (esp. restaurant), angry customer (esp. service centre) and fear of contact (esp. clinic) in most cases.

Here is a great solution that I would like to introduce to have the above issue resolved. Check out the paging system by Blufi Wireless Singapore Pte Ltd, it helps to resolve most queuing challenge.