I calling a lot and trying to switch to this Tel3advantage Make Domestic or International Calls for Less service (my friend recommend it)
Is any using it? Happy?

If you are doing a lot of long distance, I would look at Voip. I have been with Vonage for almost 3 years and I am very happy with them. I pay $45 a month for my cable internet service plus with all taxes, $30 for Vonage. That gives me unlimited free calls to the 50 states, Canada, and much of western Europe. The first year I had some problems with the cable modem, but that was Bright House's fault. I have had no problems with Vonage. Sound quality is better than with my old land line.

The broad band is a little pricey, but it does give me unlimited high speed internet too.

Who is your current telephone service provider?

Timewarner but it is expencive to call iteernatioaly