Calling a UK number that’s in the Europe zone

[Kirmw]

Hi I cannot seem to find a clear answer for this question anywhere! 

If I am in a country within the Europe Zone (Cyprus)  and my mom calls my o2 number from her o2 number will she be charged? 

[pgn · Accepted solution]

No, she will not be charged for calling your O2 phone while roaming in Europe, neither will you so long as you are on a Greek mobile network and not a Turkish one (the two countries' networks cover Cyprus, Turkish in the north of the island, Greek in the south), @Kirmw.