Before You Start Activating 3CX Make sure you already have:

• The 3CX Mobile App installed on your smartphone.
• An active 3CX extension account.
• An activation QR Code from your administrator or from the 3CX Web Client.
• A stable internet connection.

Step 1: Install the 3CX App #

To activate the 3CX Mobile App with a QR code, you first need to install the 3CX app. You can install it from:

• Android: Download it from the Google Play Store.
• iPhone (iOS): Download it from the App Store.

Once installed, open the 3CX app.

Step 2: Get the QR Code #

After installing the app, the next step to activate the 3CX Mobile App with a QR code

is to get the QR Code, which you can obtain in two ways.

• Via the Welcome Email

Your administrator usually sends an email containing your account details along with an activation QR Code.

Just open that email and get the QR Code ready to be scanned.

• Via the 3CX Web Client

If you can already log in to the Web Client:

1. Log in to your 3CX Web Client account.
2. Click the profile icon in the top right corner.
3. Select the Scan QR Code menu.
4. The QR Code will appear on screen.

Step 3: Scan the QR Code #

1. Open the 3CX Mobile App.
2. Select Scan QR Code.
3. Allow the app to access your camera if prompted.
4. Point your camera at the QR Code.
5. Wait a moment for the process to complete.

Once successful, the app will automatically connect your smartphone to your 3CX extension.

Step 4: Confirm the Activation Was Successful #

If activation succeeds, you’ll see:

• Your name or extension number appear in the app.
• The status change to Available.
• You can already make and receive calls using your office number.

If the QR Code Won’t Scan #

Here are a few things you can try:

• Clean your camera lens.
• Make sure there’s enough lighting.
• Enlarge the QR Code display if you’re opening it on a computer.

If You See an “Invalid QR Code” Message #

If you see the message “Invalid QR Code”, the QR Code has likely expired or doesn’t match your account. Contact your administrator to get a new QR Code.

Scan Was Successful, But You Still Can’t Receive Calls #

Make sure:

• Your internet connection is stable.
• The app’s status is set to Available.
• 3CX app notifications are turned on.
• The app isn’t restricted by battery-saving mode.

Also read: 3CX Officially Releases V20 Update 9 (Indonesian)

Tips #

To keep the 3CX Mobile App working well:

• Use a stable internet connection.
• Turn on app notifications.
• Don’t force-close the app.
• Always use the latest version of the app.

Once activation is complete, you can use the 3CX Mobile App to make and receive office calls from your smartphone, anywhere you have a stable internet connection. If you run into any trouble, contact us for further help.