A Study on the Implementation of SIP based new Integrated Instant Messenger


The KIPS Transactions:PartC, Vol. 11, No. 3, pp. 371-378, Jun. 2004
10.3745/KIPSTC.2004.11.3.371,   PDF Download:

Abstract

SIP(Session Initiation Protocol) is a text based call signaling protocol that has characteristics such as flexibilities and extensibility for various application services over Internet. In this paper, we have implemented SIP based integrated Instant Messenger system which includes Presence Watcher Information service that can notify various current users status. In this system, voice and video communications are also possible as well as text based instant messages. For voice and video communication, we have newly proposed a method in which direct connection is possible between users without creation of SIP INVITE dialog by extending PRESENCE TUPLE of presence information. In this case, PRESENCE TUPLE stores some informations necessary for the session.


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Cite this article
[IEEE Style]
H. G. Jo, K. S. Lee, C. S. Jang, "A Study on the Implementation of SIP based new Integrated Instant Messenger," The KIPS Transactions:PartC, vol. 11, no. 3, pp. 371-378, 2004. DOI: 10.3745/KIPSTC.2004.11.3.371.

[ACM Style]
Hyun Gyu Jo, Ky Soo Lee, and Choon Seo Jang. 2004. A Study on the Implementation of SIP based new Integrated Instant Messenger. The KIPS Transactions:PartC, 11, 3, (2004), 371-378. DOI: 10.3745/KIPSTC.2004.11.3.371.