Thought for Cell Phone Companies

Now that almost everyone has a cell phone, phone booths main function is collecting dust. A thought popped into my head today of a new way to advertise and/or make some more mu-la for cell phone companies.

A dance club, subway, or any loud public place is a pain to talk on your cell at, correct? So, what if a cell phone company produced sound barrier booths in these areas for cell phone users. You can either charge a small few (10-25 cents) to enter the booth, or offer it for free and have advertisements through out the inside and outside of it.

Just a thought.