A realization method of voice over IP system passing through firewall and its implementation

Authors:
Masashi Ito;Akira Watanabe
Affiliations:
Graduate School of Science and Technology, Meijo University, Japan;Graduate School of Science and Technology, Meijo University, Japan
Venue:
ICOIN'06 Proceedings of the 2006 international conference on Information Networking: advances in Data Communications and Wireless Networks
Year:
2006

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Abstract

In recent years, IP telephone has achieved remarkable progress on the Internet through "low price ", "continuous connection", and "high speed communication band" However, it is not easy to use IP telephone over firewall and NAT because of its restrictions of the communication We have proposed the system called SoFW (SIP over Firewall) that suppresses the problem In this paper, detailed functions and its implementation method of SoFW are described.