How to Perform OS, Security and Package Updates on Debian

The 3CX ISO is here! Debian for 3CX - BETA

Implement QoS for 3CX VoIP on Debian Linux

QoS on Windows

Real-Time Network Traffic and QoS

Real-Time Network Traffic and QoS

QoS on Windows – An Example

QoS on Windows

More Support for Legacy Phones

3CX offers support for various legacy phone models.

Export your Extensions from Asterisk to 3CX

Exporting extensions from your Asterisk Free PBX to 3CX is as easy as 1-2-3

What is the STUN Protocol, Its Purpose and how it Works

How to Make Calls Using Fanvil C62/C58

How to Make Calls Using Cisco 7940/7941/7960/7961

How to Make a Conference Call Using Yealink T21/T22/T26