@article{ART001382273},
author={장춘서},
title={A New Instant Messaging System using Extended CPL in SIP Environment},
journal={Journal of The Korea Society of Computer and Information},
issn={1598-849X},
year={2009},
volume={14},
number={9},
pages={67-74}
TY - JOUR
AU - 장춘서
TI - A New Instant Messaging System using Extended CPL in SIP Environment
JO - Journal of The Korea Society of Computer and Information
PY - 2009
VL - 14
IS - 9
PB - The Korean Society Of Computer And Information
SP - 67
EP - 74
SN - 1598-849X
AB - The presence informations of users of Instant Messaging System In SIP(Session Initiation Protocol) environment are obtained by presence server, and message waiting indication event package is used to provide various message informations stored in the message server. In this paper, I have proposed a new method in which Extended CPL(Call Processing Language) has been applied to presence service to provide various functions to the users. A user of Instant Messaging System subscribes presence information and CPL scripts which describe his requirements, and presence server executes CPL scripts when instant messaging service is subscribed and notifies presence informations. Several CPL operation tags are added, and therefore various services which combine presence service and call processing can be provided in this system. Furthermore a new method has been proposed in which message server and presence server correlate in Instant Messaging System. When changes of message status informations occur, message server send these informations to the presence server, and presence server provides both presence informations and message status informations in extended format. As this method can be a substitute for message waiting indication event package, the system operating efficiency can be increased. The performance of this proposed system is evaluated by experiments.
KW - SIP(Session Initiation Protocol);인스턴트 메시징 시스템(Instant Messaging System);확장 CPL(Extended CPL);메시지 대기 표시 이벤트(message waiting indication event)
DO -
UR -
ER -
장춘서. (2009). A New Instant Messaging System using Extended CPL in SIP Environment. Journal of The Korea Society of Computer and Information, 14(9), 67-74.
장춘서. 2009, "A New Instant Messaging System using Extended CPL in SIP Environment", Journal of The Korea Society of Computer and Information, vol.14, no.9 pp.67-74.
장춘서 "A New Instant Messaging System using Extended CPL in SIP Environment" Journal of The Korea Society of Computer and Information 14.9 pp.67-74 (2009) : 67.
장춘서. A New Instant Messaging System using Extended CPL in SIP Environment. 2009; 14(9), 67-74.
장춘서. "A New Instant Messaging System using Extended CPL in SIP Environment" Journal of The Korea Society of Computer and Information 14, no.9 (2009) : 67-74.
장춘서. A New Instant Messaging System using Extended CPL in SIP Environment. Journal of The Korea Society of Computer and Information, 14(9), 67-74.
장춘서. A New Instant Messaging System using Extended CPL in SIP Environment. Journal of The Korea Society of Computer and Information. 2009; 14(9) 67-74.
장춘서. A New Instant Messaging System using Extended CPL in SIP Environment. 2009; 14(9), 67-74.
장춘서. "A New Instant Messaging System using Extended CPL in SIP Environment" Journal of The Korea Society of Computer and Information 14, no.9 (2009) : 67-74.