Okay, Jason, I promise not to call them tonight!
We had one at the house when we were a local but a LLLOOOOOOG time ago.
Had one out side of my Liquor store and got a % of usage, but was SBC, they are not putting Pay Phones out anymore as cell phones killed them.
Did you check with the Zetas to find out who they were using??
Sure there are some places around. I know there were outfits who called me at store and said I could make money!
Wish I could be of more help. It might depend on the area you are in, Zeta of course!
Usually the Soda Companys Pepsi or Coke will put in a vender and get a %. Pit each against each other. But, you can buy a vending machine , stock it yourself, and keep the profit.
Did this at my store. Get Pop on sale you do the work and get the % of $!