이동단말기를 위한 다자간 회의시스템 구조 설계

Abstract

Recently the demands of the Internet services for the mobile environment are rapidly increasing with the growth of the Internet. Nevertheless, the technologies for the services are just in the beginning. A few simple services are only provided as compared with the diverse services on the wire-networked Internet.

The mobile devices are so handicapped in many ways that the technologies should be different with those for the desktop systems. A Small display, no keyboard, and the low bandwidth of the mobile network should be considered to develop the Internet services for the mobile environment. The Internet technologies such as mobile IP, WAP, WML, VoiceXML, and the mobile browsers are appeared for the mobile Internet services.

In this paper, the mobile Internet technologies are adapted to the audio teleconference service. Because the service is one of the most important Internet services, and also the mobile devices usually have the telephone functionalities, the service is going to be the killer application of the mobile Internet services. The technologies including WML, VoiceXML, and H.323 are appropriately tailored and the architecture of the service is proposed. The architectural model is implemented in a simulated mobile environment. The mobile audio teleconference service with the WWW and ftp services is proven to be very feasible with the architecture and tailored technologies proposed in this paper.