Configuring AVM FritzBox as a Firewall with 3CX Phone System
This guide is outdated please refer to the latest guide. Introduction This guide will show how to configure an AVM Fritzbox router / firewall as a border device with 3CX Phone System in the LAN. The tests were made using a FritzBox 7170 with firmware version 29.04.76 Note: This document will show screenshots in German as we could not upload an English language firmware on the d [...]


