And without Roaming costs!
You will buy a fixed easy Greek number.
You will forward calls made to your mobile and your fixed number to the fixed easy number.
Buy a simple pay-as-you-go Sim card from the country you are visiting.
Log in to your account from an internet café or a WiFi HotSpot and forward your easy number received calls to the pay-as-you-go number.
To make calls from your easy number, use the Call Thru service to either dial manually or automatically through the Android, Windows Mobile, iPhone, etc. applications*2, a specific*3 local number of the country you are located in and, right after that, type in the telephone number of the user you would like to speak to.
Follow the recorded instructions to access your easy number (using the country prefix e.g. 0030) and make calls at the local rate or absolutely free of charge.
Using the Premium subscritption by paying 9.95€/m, the calls to local numbers is free and
the call to mobile costs 0.02€/minute!