As mobile devices become more commonplace and consumers are increasingly mobile-focused, many restaurateurs recognize the potential for guest management through mobile applications that can do such tasks as manage wait lists and table assignments. Unfortunately, they often find these apps are not enough. A much better paging system for guest notification is a hybrid system, such as iQueue that utilizes both traditional restaurant pagers and mobile voice or text messaging, to strengthen customer relations, improve restaurant efficiency, and make guests more comfortable.
http://youtu.be/hKvIBhoJ0Ug
Click for more information on iQueue Hybrid Paging.