1.Wireless modem,industrial 2.GSM 900/1800MHz 3.Support SMS, ... RTC)6.Local and remote configuration over the air7.Support Fax:Group 3, Class 1, 28.Support CSD up to ... 14.4 kbps, USSD, non transparent mode, V.1109.Support SMS:Point-to-point MO and MT SMS ... software capabilities, making it a reliable GSM solution for data collection and transmission Frequency:EGSM900 and GSM1800Compliant to GSM phase ...