Google Android 2.3 User Manual page 183

Google Voice
Open your Inbox
You can return to your Inbox from any Google Voice screen.
Press the Back
S
Check your account balance
When you first create a Google Voice account, you have a balance of US$0.10 for toll
calls. You must sign into your account using a browser to add to your balance, but you
can check your current balance on the phone.
S In your Google Voice Inbox, press Menu
A dialog displays your current account balance.
AUG-2.3-103
button until the Inbox screen appears.
and touch Balance.
Android User's Guide
183