Google Voice lost me the very first time I tried to make a VOIP call from Brazil and couldn't figure out how to make it work.
Switched back to Skype (which worked trivially in Brazil) - never looked back.
The irony is that whatever limitation Google had with Brazil, might have been fixed in the last few years, but because of that one international hiccup, and never once having any problem with skype in any country I travel to, they basically lost me forever. (Even though last time I was using it, Google Voice was free, and skype charges me by the minute)
Switched back to Skype (which worked trivially in Brazil) - never looked back.
The irony is that whatever limitation Google had with Brazil, might have been fixed in the last few years, but because of that one international hiccup, and never once having any problem with skype in any country I travel to, they basically lost me forever. (Even though last time I was using it, Google Voice was free, and skype charges me by the minute)