One day I decided to create a new shiny(?) Google account, but I immediately realized that I was not able to use Google Voice, because when the dialer window popped up, the message “Please wait while we prepare your account, this may take a minute” stayed there forever. I could dial, but I simply could not call.

This is understandable, since Google Voice currently is only available in the US. So, the solution? I have a very easy one — Find an US proxy :)

Once I switched to an US proxy to visit the Gmail page again, everything started to work! And after the initial setup was done, Google Voice remained working without the need of an US proxy.