guardate questi
http://www.voipstunt.com/en/rates.html
http://www.voipcheap.co.uk/en/rates.html
http://www.sipdiscount.com/en/rates.html
http://www.sparvoip.de/de/rates.html
http://www.netappel.fr/fr/rates.html
http://www.internetcalls.com/en/rates.html
http://www.voipdiscount.com/en/index.html
http://www.poivy.com/en/splashpoivy.html
http://www.voipcheap.com
esiste un operatore ITA voip che ti fa chiamare gratis in tante destinazioni internazionali come quelli sopra ?