Fully automatic ,computer based telephone billing system.
It’s main advantage is that the owner can use different telephone lines. To prevent employees cheating ,the units in the cabins cant be used without entering password ,wich obligate them to register all the amount collected. The owner has a supervisor password to check the amount and the prices.
The system is build of hardware and software ,can be easy expandable and handles from 2 to 8 telephone lines with one RS232 port.

Data: 10-30-2011
Data de final: 11-30-2012