Paytel Callcard Solution
Callcard solution for romanian jail facilities
A hardware / software solution developed for Romanian jails that does tracking of the inmate calls based on personal barcode card. The application applies some limitations to callers allowing only certain number to be called, limits the duration of calls and the number of total calls.
The hardware solution consists in multiple custom phone booths equipped with barcode swipe scanners and sip adaptors connected to a local asterisk server via a local network. The multiple local server from each facility are then connected using a virtual private network to the main asterisk server which forwards all the calls using multiple E1 lines.
Technologies used: php, mysql, asterisk, smarty, fastagi, e1, c, tcp/ip, rs232, openvpn