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Design and Implementation of User Agent for Internet Telephony Services based on SW  

Huh Mi Young (한국전자통신연구원 표준연구센터)
Han Jaechon (한국전자통신연구원 표준연구센터)
Hyun Wook (한국전자통신연구원 표준연구센터)
Park Sun Ok (한국전자통신연구원 표준연구센터)
Kang Shin Gak (한국전자통신연구원 표준연구센터)
Kim Dae Young (충남대학교 정보통신공학과)
Publication Information
Journal of KIISE:Information Networking / v.32, no.3, 2005 , pp. 350-358 More about this Journal
Abstract
Recently, VoIP technology is being accepted as are the most promising Internet telephony service, due to the substitution effect of traditional telephony service. Two standards, i.e, . H.323 and SIP. have emerged for signaling and control for Intemet telephony, of which SIP provides far lower complexity and rich extensibility. It is important to secure components of SIP in order to develop various services. Generally, open source codes provide basic functions of SIP as well as complicated structure, but are difficult to extend. In this thesis, we focused on offering interface mechanism between application and SIP User Agent to easily extend for various VoIP services. This thesis describes what function is needed for SIP User Agent, how to define the internal data structure, and how to define the internal processing procedure. The check iist derived through participating the interoperability event for stabilized SIP User Agent is also suggested.
Keywords
SIP; User Agent;
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  • Reference
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