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Development of the IP-PBX with VPN function for voice security  

Kim, Sam-Taek (우송대학교 컴퓨터정보학과)
Publication Information
The Journal of the Institute of Internet, Broadcasting and Communication / v.10, no.6, 2010 , pp. 63-69 More about this Journal
Abstract
Today, Internet Telephony Services based on VoIP are gaining tremendous popularity for general user. Therefore a various demands of the user keep up increase, the most important requirements of these is voice security about telephony system. It is needed to ensure secret of voice call in a special situation. Due to the fact that many users can connect to the internet at the same time, VoIP can always be in a defenseless state by hackers. Therefore, in this paper, we have developed VPN IP-PBX for the voice security and measured conversation quality by adopting VPN IPsec based on SIP and using tunnel method in transmitting voice data to prevent eavesdrop of voice data. This VPN IP-PBX that is connected Soft-phone provide various optional services.
Keywords
VoIP; IP-PBX; IPTelephony; VPN; SIP; IPsec;
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