I use voipdiscount.com service to make international calls, because it is really cheap or even free in some cases But unfortunately it works from desktop PC only, using their software you can call from PC or trigger a callback to your mobile/landline phone and talk directly from phone to phone not from PC with internet connection, it is really convenient. Also a call can be triggered from their web site when you login. Well and what is not convenient is that trigger function does not work when I use Palm browsers. I would be very happy to use this service from my Palm on the go and not from desktop PC only. Can anybody try it if it will work for you? There are some hard scripts maybe which cannot be understand by Palm browsers or something else.