3CX Extension User Manual
Take the PBX Express
Your PBX, Your Cloud, ready in minutes
Zero Admin
With the new Dashboard
Bulletproof Security
With SSL certs and NGINX
Install on $200 Appliance
Intel MiniPC architecture
New, Intuitive Windows Client
More themes, more UC
More CRM Integrations
Scripting Interface to add your own
Improved Integrated Web Conferencing
iOS and Android apps included
Run On-Premise or in the Cloud
Google, OVH, Windows & Linux

3CX Extension and MyPhone User Manual

The 3CX Extension User Manual explains how you can take advantage of all your 3CX Phone System extension features. 3CX Phone System is a VoIP PBX that offers you many more benefits than a traditional PBX. Read more about 3CX Phone System here. The manual consists of eight sections shown below – each one reinforces how you can take advantage of your 3CX Phone System extension.

Using Your Desk Phone

Use your snom, Yealink and Cisco desk phone to perform basic tasks.

Conference Calls

Conference calls connect multiple users in one call.


Manage the voice messages that callers leave in your mailbox when they cannot get through to you.

Making Calls from Your Android

Stay connected with 3CXPhone for Android on your smartphone

Making Calls from Your iPhone

Stay connected with 3CXPhone for iPhone on your iPhone and iPod Touch.

Making Calls from Your Computer

Stay connected by using 3CXPhone for Windows on your computer.

Basic Guide to Controlling your Extension using 3CX MyPhone

3CX MyPhone provides various features to control your extension.

Advanced Guide to Controlling your Extension using 3CX MyPhone

Use 3CX MyPhone for advanced tasks related to your extension.