Searching for the best PC-to-Phone offer I have discovered Wengo.

They have very cheap fares, and if you are living outside EU you dont pay the VAT. :-) So, you pay 10 euro, you get 10 euro. fares from 0.008 euro/minute (landlines) – as trial version. This can be used just for calling landlines.

In trial version the time of communication per call limited to 10, 5 or 2 minutes (depending on your destination). Check destinations available with the Free Trial.