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Published in:
2006 | OriginalPaper | Chapter
A Realization Method of Voice over IP System Passing Through Firewall and Its Implementation
Authors : Masashi Ito, Akira Watanabe
Published in: Information Networking. Advances in Data Communications and Wireless Networks
Publisher: Springer Berlin Heidelberg
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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.