Each paid order corresponds to one personal identification number (PIN)
After buying a ticket, PIN-code will be sent to the mobile phone
Instead of presenting a
paper ticket at the entrance,
tell the ticket-taker that you have
an electronic ticket.
Ticket-taker will prompt you
to input a PIN-code
on the terminal's keyboard
for issuing ticket
After dialing the PIN code, print and receive
tickets takes about 2 seconds