3CX: SIP and SMS Configuration

Overview

This guide outlines the complete process for configuring SIP and SMS settings within the 3CX Portal. It walks through each step, including adding a SIP trunk, entering authentication details, registering the provider, and setting up SMS functionality using CommsChannel credentials. It also explains how to generate and share the webhook required for SMS integration. A PDF copy of this guide is attached to this article.

Part 1: Add the SIP Trunk (Steps 1-11)

Step 1: Open Admin

On the 3CX Portal, click on Admin.

Step 2: Open Voice & Chat

Click Voice & Chat.

Step 3: Add SIP Trunk

Click the Add SIP Trunk button, and add a trunk profile.

Step 4: Name the Trunk

Give a name to your trunk.

Step 5: Select the Default Route

Select the default route where the incoming call/SMS will go.

Step 6: Choose the VoIP Provider

For the VoIP provider, select Worldwide under country, as this is what enables the SMS tab. For the provider, select Generic VoIP Provider.

Step 7: Add the Number / DID

Add the number/DID that is associated with your trunk.

Step 8: Enter the SIP Authentication Username

Enter the SIP authentication username.

Step 9: Enter the SIP Authentication Password

Enter the SIP authentication password.

Step 10: Choose Register / Account Based

Click Register/Account based.

Step 11: Set the Registrar / Server

Click Registrar/Server and add sbc.channelsip.com.

Part 2: Verify the DID Routing (Steps 12-13)

Step 12: Open DID Numbers

Click DID Numbers.

Step 13: Check the Destination

Verify that the correct number is assigned to the correct destination.

Part 3: Configure SMS (Steps 14-18)

Step 14: Open the SMS Tab

Click SMS.

Step 15: Enter the API Key

Enter the API key provided by the CommsChannel team.

Step 16: Note the Webhook

The webhook is a unique value for your portal.

Step 17: Send the Webhook to CommsChannel

Copy the webhook and provide it to the CommsChannel team.

Step 18: Enter the Provider URL and Save

Enter the provider URL that has been provided to you. Once done, save the configuration.

Key Notes