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VoIP - IP Telephony White Papers

Traversing Firewalls and NATs With Voice and Video Over IP

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voip - ip telephony

Overview Strategic advantages exist for organizations and enterprises when their voice, video, and data communications run over a single converged IP network infrastructure. Unfortunately, the ability to capitalize on IP communications systems has been severely delayed because nearly all corporate networks have firewall and Network Address Translation devices (NATs) that effectively block IP voice and video calls. Firewalls block IP voice and video traffic by placing a barrier to any unsolicited, incoming communications. NATs block IP communications traffic because the IP voice and video devices behind the NAT have private IP addresses that are not routable outside their local domain or on the public Internet.

Further White Paper Details
Publisher	Wainhouse Research	File Format	PDF
Date Published	April 2002
Format	White Papers
Topics	VoIP - IP Telephony, Firewalls, Security Tools

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