---
title: How to Scan a QR Code Using the 3CX Mobile App
description: Easily scan a QR code with the 3CX mobile app to register your extension. Follow these simple steps for quick setup!
---
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20 February 2026
# How to Scan a QR Code Using the 3CX Mobile App
## Step-by-step guide to scanning your 3CX QR code and activating your VoIP extension on the mobile app.
#### How to Scan a QR Code Using the 3CX Mobile App
Scanning your QR code is the fastest way to set up your Kiwi VoIP extension on your mobile device. This automatically configures your account and connects your phone system.
---
#### Step 1: Install the 3CX App
Download and install the **3CX app** from:
- Apple App Store (iPhone)
- Google Play Store (Android)
---
#### Step 2: Open the 3CX App
Launch the 3CX app on your mobile device.
When prompted, allow access to:
- Camera
- Microphone
- Contacts
These permissions are required for calling functionality.
---
#### Step 3: Open the QR Code Scanner
In the app:
1. Tap the **menu icon (☰)** in the top left
2. Select **Accounts**
3. Tap **Add Account**
4. Tap **Scan QR Code**
---
#### Step 4: Scan Your QR Code
- Open your 3CX welcome email on another device (computer or tablet)
- Locate your **QR code**
- Point your phone camera at the QR code
The app will automatically configure your extension.
---
#### Step 5: Complete Setup
Once scanned, your extension will register automatically and you’ll be ready to:
- Make calls
- Receive calls
- Use your Kiwi VoIP extension from anywhere
---
#### Troubleshooting
If scanning does not work:
- Ensure you have the latest version of the 3CX app installed
- Confirm the QR code is fully visible and not cut off
- Try closing and reopening the app
- Restart your phone if necessary
If you still have issues, contact Kiwi VoIP support.
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