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.
PCI Compliance
Remove your 3CX system from PCI scope by routing sensitive payment data through Paytia's secure infrastructure
Secure Capture
DTMF masking and agent-assisted payment capture ensure card details never reach your 3CX system
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.
Complete call recording and compliance reporting included
Before You Begin
Ensure you have the following before starting the setup process:
Admin Access
3CX console account with administration permissions
Paytia XML File
SIP trunk XML profile provided by Paytia
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.
All Setup Steps
Access 3CX Administration
Step 1 of 17
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.

Open Admin Panel
Step 2 of 17
On the bottom left corner of your 3CX console you will now see an Admin button with a cog icon. Click the Admin icon.

Navigate to Advanced Menu
Step 3 of 17
Now click on the Advanced menu option

Access Templates
Step 4 of 17
Now click on the Templates menu item

Provider Templates Tab
Step 5 of 17
Now click on the Provider Templates tab

Import Provider
Step 6 of 17
Click the import Provider button

Select Paytia XML File
Step 7 of 17
Use Select file to browse to the Paytia 3CX xml file

Import the Profile
Step 8 of 17
Click the Import button

Configure Trunk Profile
Step 9 of 17
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

Add DDI Numbers
Step 10 of 17
Add any additional DDI telephone number you will use with your Paytia account

Save Phone Numbers
Step 11 of 17
Type in your numbers one by one and click the Save icon next to the number

Example Configuration
Step 12 of 17
Example of properly configured phone numbers

Save Configuration
Step 13 of 17
Click the Save button to save your trunk configuration

Setup Outbound Rules
Step 14 of 17
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

Configure Dial Rules
Step 15 of 17
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

Save Rules
Step 16 of 17
When you have finished adding a rule Save.

Complete Setup
Step 17 of 17
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.
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
Call Recording
Maintains active call recording at all times
User Access
Any 3CX user can process payments securely
Customer
Paytia integrates seamlessly with your existing telephony infrastructure. Calls route through our secure payment platform where card data is safely captured and processed, then continue to your VoIP system with sensitive information removed for PCI compliance.
Disaster Recovery & Business Continuity
Paytia is able to host multiple SIP trunk endpoints per number allowing granular delivery of disaster recovery/business continuity routing.
Multiple Endpoints
Host multiple SIP trunk endpoints per number for redundancy
Granular Routing
Intelligent failover routing ensures business continuity
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.
Paytia Live UK Profile
Official XML configuration file
Pre-Configured
Ready-to-use settings included
Direct Import
Import directly into 3CX
Secure Config
Official Paytia settings
Need Setup Assistance?
Our technical team is here to help you complete your 3CX integration successfully