It is easy to get Cheap International calls from your mobile, all you need to do is to download an app from vopium.com and within minnutes you are good to go.
The choise of app depends on your mobile phones operating system, but vopium vorks with almost all the phones on the market, and not just smart phones.
The price of international calls when you are roaming are also cheap, uou can use it where ever you go!
I am sure you have tried to travel abroad with your mobile phone and have found out just how exspensive it can be to phone home, and even thoug eu has desided to put a cap on the outragius international romain charges, they are still very expensive.
Cheap International calls is certently not in the cards from your standard mobile phone company, but with an app on your phone you can use voip to make the call and get real Cheap International calls.