I have been through whats out there as far as solutions to international call problems, and I find Truphone to be one of the smartest!
Great call quality! Lovely rates! Clever features! And I can use it on my mobile phone-- i dont have to lug my computer around and wait for the person Im calling to get on skype! Hooray! its like they had me in mind. :)
SweetDealness about Truphone – Free calls & messages, local or international, v5.2.1