Extra SIM

With the Extra SIM service, you can share the Internet data from your Business Mobile plan with a SIM-enabled laptop or tablet computer. Enjoy a stable Internet connection when you are travelling around Estonia and the rest of the EU.

From € 3/month + VAT

From 01.07.2026, the service price for all customers is €4/month + VAT.

Subscribe to service

High-quality and secure 5G Internet
Share your mobile plan between up to 5 devices
A stable connection that does not depend on WiFi networks

Always connected using your laptop or tablet computer, anywhere
With the Extra SIM, you can browse the web with all your devices, without having to worry about whether a WiFi or a hotspot is available at your location. This solution is suitable for a person who is often on the go and wants to stay connected regardless of location.
Share the data from your mobile plan
The data included in your mobile plan can be shared between up to 5 devices, one of which must be a voice call device. The other devices can be exclusively Internet devices. The monthly fee for the Extra SIM service for one device is €3 + VAT, and Mobile Internet can be used to the full extent of the plan.
Sharing Internet with a router
If your device does not have the ability to use a SIM card, but you still wish to share your Internet connection, then a router will help.
Look at the pocket router

How to join the Extra SIM service

Choose a number
Select the existing phone number in the Business Mobile plan for which you wish to add the Extra SIM, or join the Mobile Business plan in the self-service.
Add a user or device
Add a new user or device to the plan in the self-service under plan details.
Start using the Extra SIM
The ordered Extra SIM will reach you within a couple of days, and after installing it in the device, you can start using the Internet.

A complete solution for your company

Business Mobile

Calls, messages and internet at the Estonian rate in the European Union.

Wi-Fi extenders and special solutions

Consistent Wi-Fi coverage in the office, café, warehouse, workshop, or outdoors, if needed.

Secure Net

Secure Net is a next-generation fast and secure Internet service that protects your company’s network from cyberattacks.

Good to know

With the Extra SIM service, you use the Internet data from your Mobile Internet plan. For example, if you have 15 GB of Mobile Internet data in your plan that you have been using with your phone so far, and you add one Extra SIM to your laptop, then the data is shared between these two devices – in total, you can use a maximum of 15 GB.
The Extra SIM is only used for sharing data.

The Extra SIM is a convenient way to connect all the devices you use for work on a daily basis to Mobile Internet. For example, you can add a SIM-enabled laptop or tablet computer to your mobile plan. You can share the Internet between up to five devices for one monthly fee. All devices are always connected and do not depend on WiFi or Internet shared using a hotspot.

You can install the Extra SIM in a device that has a SIM card slot. If your device does not have a SIM card slot, we recommend that you purchase a router with a SIM card slot that you can use to share Mobile Internet to your devices.

Each device comes with a user manual. We recommend that you look in the user manual of the device to see where the SIM card slot is located, and install the SIM card in the device as directed in the manual. Telia’s IT support 1787 is also always there to help you with any technical issues.

The Extra SIM gives you the opportunity to use Mobile Internet without being dependent on WiFi or a hotspot.

We recommend the Extra SIM service to those whose work requires mobility and who constantly need to use the Internet for work: to send emails, images, presentations, etc.

If you use a large volume of Internet data on your laptop or tablet computer, we recommend that you take a separate plan for your device. You can also take one mobile plan with a larger amount of data to share between devices. If you are not sure which solution you need, please consult the staff at any of ours shops or call the Business Client Service on 1551.

You can share the data included in the plan between up to 5 devices, one of which must be a voice call device. The other devices can be exclusively Internet devices.

Yes, you can. It is important to remember that the Internet data included in the plan is shared between different devices, meaning that if there is a total of 15 GB of mobile data in the plan, then this is the total volume that can be used by all devices; it does not mean that 15 GB is allocated to each device separately. If you use the entire volume with one device, we recommend that you choose a plan with a higher volume of data. You can keep an eye on the used volume in Telia self-service.

Extra SIM

How to join the Extra SIM service

Choose a number

Add a user or device

Start using the Extra SIM

A complete solution for your company

Business Mobile

Wi-Fi extenders and special solutions

Secure Net

Good to know

FAQs

How does the Extra SIM service work?

Why should I subscribe to the Extra SIM service?

Which devices allow to use the Extra SIM service?

How to add a SIM card to a laptop?

What advantages does the Extra SIM give?

Who would benefit from an Extra SIM?

Should I subscribe to the Extra SIM service or install a SIM card on a separate plan to my laptop or tablet computer?

With how many devices can I share Internet data?

If I have taken 2 Extra SIMs, can I use Mobile Internet on different devices at the same time?