Then, unfortunately, Tinitell will not be able to work properly. You will still be able to call if your operator supports GSM communication. However you will not be able to see your Tinitell's location.
If your country does not have an operator that supports neither GSM or 2G, you might want to wait before buying a Tinitell. We are constantly improving our product and the next version might very well be able to run on 3G, 4G and LTE networks.