betamax working with any international sim card?

[Bossman]

It should work with any of the sim cards with a UK number. I know VOIP cheap works with my easyroam 447924 number.

Originally Posted by millen182

hi, i bought a gosim international card,i tried to reach this estonian mobile number with voip nettelephone and it wont work,i read in the forums about people saying it doesnt work with betamax neither,but somebody said it works with actionvoip or smartvoip,i dont have any betamax account so i cant test,im thinking about send back the card to gosim because i cant reach it with betamax because is not cheap and maybe get a national geographic talk abroad card that comes with uk number, does anybody know if betamax works with any international sim card? thanks very much!!!