Google is always looking for new ways to bring ads to the masses and it looks like they’ve found a new way to bring a few more to your phone, this time – while you place call. Google files Patent for advertising products via your phone calls. Advertisers in return, are billed according to how long the user goes on listening to the advertisement before the caller on the other end picks up.
Its about Ringback not Ringtone. so when you’re waiting for the other person to pick up, you’ll be treated to advertising.