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Study on Design of Internet Phon(VoIP) using the VPN  

Yoo, Seung-Sun (비멕(주) 기술개발)
Kim, Sam-Tek (우송정보대학 컴퓨터정보통신학부)
Lee, Seung-Gi (지피텍(주))
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.30, no.2A, 2005 , pp. 12-19 More about this Journal
Abstract
The VoIP(Voice over IP) has been worldwide used and already put to practical use in many fields. However, it is needed to ensure secret of VoIP call in a special situation. It is relatively difficult to eavesdrop the commonly used PSTN in that it is connected with 1:1 circuit. However, it is difficult to ensure the secret of call on Internet because many users can connect to the Internet at the same time. Therefore, this paper suggests a new model of Internet telephone for eavesdrop prevention enabling VoIP(using SIP protocol) to use the VPN protocol and establish the probability of practical use comparing it with Internet telephone.
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  • Reference
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2 D. Rand, 'The PPP Compression Control Protocol (CCP)', RFC 1962, June 1996
3 W. Simpson, 'PPP LCP Extensions', RFC 1548, January 1994
4 W. Simpson, 'PPP Challenge Handshake Authentication Protocol (CHAP)', RFC 1994, August 1996
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