O2 not working in Poland

[Dariusmad]

I can used my call in Poland I can’t call and receive call from uk in Poland sometimes i received messages but I can’t call I heard this service is not available for this number

[Cleoriff]

@Dariusmad 

You can call O2 for free using Skype Guide: A Guide to Skype 

If you need to contact O2 from abroad, use this free number +44 7860 980 202

OR use Social Media  -on Facebook (https://o2uk.co/O2CFB) , Twitter ( https://o2uk.co/O2CTW) or Instagram (https://o2uk.co/O2CIG)

Guide: Roaming MegaGuide

https://www.o2.co.uk/international/using-your-phone-abroad 

[Enlli]

It's worth remembering that both Orange an T Mobile are closing 3G over large areas. If yout phone does not have 4G Calling  you may well struggle in some locations.

Forcing your phone onto 2G may get you calls in that situation.

https://www.o2.co.uk/connectivity/wifi-and-4g-calling#:~:text=All%20the%204G%20and%205G,firmware%20f....

4G Calling is not available on PAYG