[링고벨] 무선 호출벨 어플리케이션-링고넷

Note) Ringo Bell's RingoNet system is a new concept of calling service using wireless call bell and Ethernet gateway.
 You can check the wireless call signal on WEB and APP, and you can freely send a message to the wireless signal.
 In WEB service, call signal can be downloaded to DB. It can also be used in conjunction with various wireless paging systems.