Here is what I'm looking for:

I would like to make the calling card business more "electronic". Let me explain.

I would like to be able to store millions of calling card pin codes in
a server and then install some kind of a basic low-price terminals at
coffe shops, mini-stores, etc. Now, if somebody needs a calling card,
he/she would go the shop, use that terminal (or ask the seller of that
shop) to give her a pin number. The terminal will then log into the
server and get a pin code for that person, print it on a small piece
of paper (just like a bank receipt), and give to the person.


The idea is to be able to save on distributing the calling cards (no
more cards and scratching), and on being able to have more control
over the whole calling card process.


My question: Are there any such terminal in the market? Where can I
find them? Which company would supply me with the needed SW and
Hardware?

Thanks,
Alan