The funds in your Yahoo! Phone Out account won’t expire, as long as you use the service. However, if you not blab away on other phones and don’t make a call on Yahoo! for 180 days, then the funds will expire. To prevent your funds from expiring, just call your favorite Yahoo! employee every few months to tell them how much you love them.
Seriously, to prevent your funds from expiring, just be sure to make a call within 180 days from the date of: