Does it cost anything to receive calls from abroad?

No, not if you are in Sweden or another EU country.

Yes, if you are outside the EU and receive calls from abroad, you may need to pay additional charges. The cost varies depending on which country you are in and what agreement you have with your operator. However, within the EU, special rules apply which mean that it does not cost extra to receive calls. Before traveling outside the EU, you should check with your operator to avoid unexpected costs.