CENTRAL CONTROL TYPE GROUP CALLBACK MESSAGE TRANSMISSION METHOD

摘要

The present invention relates to a central control type group callback message transmission method. The present invention provides a technology which can set a callback message, sent through a smart phone, per an individual and per a group. A callback message set in an individual account at other times. If a manager sets an event for sending a group callback message, the group callback message instead of an individual callback message is sent.;COPYRIGHT KIPO 2016