There used to be a landline company that provided free calls in exchange for playing ads during the call.

EDIT: It took way too long for me to find details, sorry.

https://webcache.googleusercontent.com/search?q=cache:JiENVG...

Would you listen to a 15-second advertisement in order to make a free two-minute long-distance phone call?

BroadPoint Communications Inc. of Landover is betting that enough of you would, and is launching its service in Pittsburgh this week with "thousands" of subscribers. A Baltimore rollout could come this summer.

But before you bid good riddance to long-distance bills, be aware that -- surprise -- there are strings attached.

Before using BroadPoint's service, you'll have to register at the company's World Wide Web site and give up personal information, such as household income, number of children and ethnic background.

Once you've sent this information -- which BroadPoint says it will never sell to other companies -- the only thing separating you from unlimited free chat are a few ads, selected specifically for you based on your survey responses. For example, if you told BroadPoint that you have seven young children, don't be shocked to hear a diaper commercial.

“I’m lovin’ it” or a jingle in the background would be enough for many brands without interrupting the call.

Clearly it would never be accepted though.