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How to set up and use Multi Device

How to set up and use Multi Device

How to set up and use Multi Device

The Multi Device option lets you surf on up to two additional devices and make calls with the same telephone number. So you can take incoming calls on your master device plus additional devices enabled to take calls. And you can make calls on all these devices using the same telephone number. You can also surf on all your devices at the same time.

The roaming units in your subscription apply to your master device and additional device(s).

Coming soon: Multi Device 6 months for free

Use your Apple Watch Series 3 for free for 6 months with your inOne mobile subscriptions.

Discover the Apple Watch

You will need

A smartphone with an inOne mobile subscription (except inOne light). This is your master device. 
1 or 2 additional devices that are SIM-only or eSIM.

A Multi Device SIM for each additional device. If you don’t have a Multi Device SIM yet, you can order one here.

You do not need a new SIM for your master device. You can continue to use your master device as it is.

For technical reasons, you cannot use Multi Device in combination with Liechtenstein connections with the code +423.

How to activate Multi Device

On your master device, visit
Click "Devices"

Click "Select Option"

Select the Multi Device option you want to use.
Click on "I have a SIM card or an eSIM profile"
Click "Scan SIM QR code"
Click "Scan now"
Photograph the QR Code on the Multi Device SIM in the cockpit. (Please do not use a QR code reader app. Scanning only works in the cockpit.) You might have to allow access to your camera.
Check your Multi Device order and click "Confirm" 
You will now be asked to switch off your master device for 5 minutes. Click on "OK"  
You will now see a confirmation that we have received your order.
Switch off the master device for 5 minutes
In the meantime insert the Multi Device SIM in your additional device
Switch on both your master and additional devices
  A text to your master device now notifies you that the Multi Device option has been activated



Features, costs & the new Apple Watch Series 3

You can find an overview of the Multi Device prices and functions for master devices and additional devices at

Swapping additional device or cancelling Multi Device

Multi Device vs. Natel Data vs. Extra SIM

Information for customers with a NATEL® infinity plus/2.0 XL subscription and free NATEL® data subscription.