September 20th, 2011 | Published in Gmail (Google Mail)
Cross-posted from the Google Voice Blog
If you're calling internationally from Gmail a lot, you may have noticed that your calling credit goes a very long way... which makes it easy to get caught off guard when it runs out.
So based on your feedback, we implemented the ability to auto-recharge your account: just go to your billing page (click on the add credit link next to your balance) and select the recharge amount. When your calling credit dips under $2 or 2€ we will automatically charge your credit card on file for the selected amount.
This feature becomes available after your first purchase and can be changed or disabled at any time.