Upgrading to V15 with a Multi Line PSTN Gateway

Upgrading to 3CX V15 with a multi line PSTN Gateway

Plug and Play your IP Phone with 3CX V15

What are the requirements to be able to Plug and Play your IP Phone with 3CX PBX

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

Customize your DND (Do Not Disturb) Status in v14 SP1

Do Not Disturb Button

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

STUN

How to Make Calls Using Fanvil C62/C58

Fanvil C62

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

Cisco 7961

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

Yealink T26

How to Make a Conference Call Using Yealink T19P

Yealink T19