Viuce not working with Easy Roam

I should add that I have the 0$ voice and data add-ones already. 

Hi

Which phone are you using?

Data working but no voice usually points to VoLTE. 3G has been shut down in a lot of countries now, so if VoLTE is off in your settings or your phone doesn't support LTE/VoLTE roaming, data keeps working but calls won't connect. Check that VoLTE is turned on, steps for iPhone and Android are here https://www.koodomobile.com/en/help/volte

After that, restart the phone and toggle airplane mode on for about 10 seconds and back off. If calls still don't go through, go into your network settings, turn off automatic network selection and manually pick a different network in Iceland. More troubleshooting here https://www.koodomobile.com/en/help/troubleshoot-mobile-phone-problems-when-traveling

Thank you!