How to change your Google Voice number if you want to direct calls for work or personal reasons

You can change a Google Voice number for $10 or port your current phone number to a Google Voice account so both numbers can be used interchangeably.

How to add credit to your Google Voice account in 2 ways, so you can make international calls

You can add up to $70 in credit to your Google Voice account from the Google Voice website, or from the Android mobile app's Settings menu.
Arizona Daily Star

For Google Voice, hype unwarranted

Google Inc. gives away a lot of good stuff for free. That struck me last year when I downloaded the free Google Maps app to my "smart" phone. It turned the phone into a handy navigation system and ...