Airtime GSM/GPRS Wireless SMS Printer 1. Airtime Recharger, Prepaid Airtime, Money Transfer 2. GPRS, IVR, SMS, STK, USSD Key Words: cell ... , Spanish, Arabic, Thai, Italian etc.Multiple charging channels: GPRS, IVR(voice), SMS, STK or USSDStores charging records such as ... telecom Operators — China Mobile, China Telecom and China Union.30%market share in ChinaTechnological Partners of SIMCOM, TI, ST, ...