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Networking

Transparent SIP Communication with NAT

We show you how to secure transparent IP address transitions through NAT firewalls and gateways for Voice over IP.

Mathias Hein
By  Mathias Hein
Updated / Published 11 min read
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  • Mathias Hein

    Mathias Hein

    Mathias Hein is a freelance IT consultant and technical writer with more than 40 years of professional experience in the field of networking. He also serves as an adjunct instructor at several universities, a trainer and speaker, and a book author.