3CX Setup Guide

Import the Paytia SIP Trunk Profile for 3CX v20+

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Secure Payment Processing with 3CX Integration

Paytia provides the ability to add a dedicated SIP trunk route on 3CX phone systems, allowing all calls to be secured by Paytia's card capture services. This integration transforms your existing 3CX system into a PCI-compliant payment processing platform.

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PCI Compliance

Remove your 3CX system from PCI scope by routing sensitive payment data through Paytia's secure infrastructure

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Secure Capture

DTMF masking and agent-assisted payment capture ensure card details never reach your 3CX system

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Seamless Integration

Maintain your existing call flow while adding enterprise-grade payment processing capabilities

How It Works

When a customer needs to make a payment during a call, your agent can dial 7 2 9 on their 3CX handset/softphone keypad to start the Paytia's secure payment capture service. The customer completes their payment safely, and control returns to your agent - all without interrupting the conversation flow.

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Complete call recording and compliance reporting included

Before You Begin

Ensure you have the following before starting the setup process:

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Admin Access

3CX console account with administration permissions

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Paytia XML File

SIP trunk XML profile provided by Paytia

Download XML File
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Phone Numbers

E.164 formatted numbers (+44, +1, etc.) for your account

Setup Instructions

Follow these 17 steps to successfully import and configure the Paytia SIP trunk profile in your 3CX system.

Step 1: Access 3CX Administration

Log into your 3CX console using an account with administration permissions

Step 2: Navigate to SIP Trunks

Access the SIP Trunks section in your 3CX management interface

Step 3: Add New Trunk

Begin the process of adding a new SIP trunk to your system

Step 4-17: Configuration Steps

Complete the detailed configuration using the provided XML profile and setup images

Detailed Setup Steps

Complete step-by-step instructions for importing and configuring the Paytia SIP trunk profile.

Step 1: Access 3CX Administration

Log into your 3CX console using an account with administration permissions. You will see the Admin Console interface with the navigation menu on the left side.

Step 2: Open Admin Panel

On the bottom left corner of your 3CX console you will now see an Admin button with a cog icon. Click the Admin icon.

Step 3: Navigate to Advanced Menu

Now click on the Advanced menu option

Step 4: Access Templates

Now click on the Templates menu item

Step 5: Provider Templates Tab

Now click on the Provider Templates tab

Step 6: Import Provider

Click the import Provider button

Step 7: Select Paytia XML File

Use Select file to browse to the Paytia 3CX xml file

Step 8: Import the Profile

Click the Import button

Step 9: Configure Trunk Profile

Add the name of the trunk profile, e.g. Paytia Live and the phone number (this must be in e.164 +44, +1 etc format) you want to use with your Paytia account

Step 10: Add DDI Numbers

Add any additional DDI telephone number you will use with your Paytia account

Step 11: Save Phone Numbers

Type in your numbers one by one and click the Save icon next to the number

Step 12: Example Configuration

Example of properly configured phone numbers

Step 13: Save Configuration

Click the Save button to save your trunk configuration

Step 14: Setup Outbound Rules

Now you will be asked to setup an outbound rule to allow calls to be routed to this SIP trunk profile.

Reference Documentation

For complete outbound rules configuration, see: 3CX Outbound Rules Complete Example

Step 15: Configure Dial Rules

Paytia suggest by default you add these rules: +44, 0 – strip 1 digit and append +44

Recommended Rules

  • +44 - For UK numbers
  • 0 - Strip 1 digit and append +44
Step 16: Save Rules

When you have finished adding a rule Save.

Step 17: Complete Setup

You will be taken to the Outbound Rules list where you can add as many dial rules as you like

Understanding the Technical Architecture

How Paytia's dual SIP trunk design enables secure payment processing with 3CX.

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Secure SIP Trunk Architecture

Paytia creates two SIP trunk profiles allowing calls from external carriers to pass through Paytia to the 3CX system inbound and outbound. This design allows you to remove 3CX from PCI-DSS scope and allows call recording to remain active at all times on 3CX and any 3CX user to be assigned the ability to process payments securely.

PCI-DSS Compliance

Removes 3CX from PCI-DSS scope entirely

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Call Recording

Maintains active call recording at all times

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User Access

Any 3CX user can process payments securely

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Disaster Recovery & Business Continuity

Paytia is able to host multiple SIP trunk endpoints per number allowing granular delivery of disaster recovery/business continuity routing.

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Multiple Endpoints

Host multiple SIP trunk endpoints per number for redundancy

Granular Routing

Intelligent failover routing ensures business continuity

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Paytia XML Configuration File

Download the official Paytia SIP trunk XML profile for direct import into your 3CX system. This pre-configured file contains all the necessary settings for seamless integration.

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Paytia Live UK Profile

Official XML configuration file

📥 Download XML
Pre-Configured

Ready-to-use settings included

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Direct Import

Import directly into 3CX

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Secure Config

Official Paytia settings

Need Setup Assistance?

Our technical team is here to help you complete your 3CX integration successfully

Contact Technical Support Email: techsupport@paytia.com