1).No scratch card charging, cost effective and easy management.
2). Much more convenient charging process than traditional one, promoting sales.
3). It can be used as public pay phone.
4).Multiple charging channel: by IVR(voice),SMS,STK, or USSD.
5).It stores charging records, such as charging time, charging total, easy management.
6). A built-in thermal printer prints voucher for charging.
7).It can be used to pay expenses of gas, water, electricity etc., much convenient especially for people in remote areas.