Tutorials: SIP Trunk Setup

Required Access: 3CX FREE

Last Updated: 6/10/2025

Enter your credentials.

Click on "Admin" from the dashboard.

Click on the "Voice & chat" tab.

Click on the "+ Add Trunk" button.

Select either the United States or Canada from the Country drop-down menu.

Select Voxtelesys from the Trunk drop-down menu.

Enter the following:

• Name: "Voxtelesys (Voxtelesys)" or to anything you would like.
• Main trunk number: Type in your phone number beginning with +1
• Authentication ID (SIP User ID): "Provided by Voxtelesys"
• Authentication password: "Provided by Voxtelesys"

Click on the "SMS" tab.

Check on the "Enable SMS" button.

Click on "Save" when you are finished.

Your Trunk is now registered!