... • Remote monitoring and Control • Remote Meter Reading • Facility Management • Fire and Security Management • Environmental Monitoring • Vending • Other M2M and data telemetry • Frequency ranges: ... network protocols:• TCP, UDP, HTTP, FTP, SMTP, POP3• Control by AT-commands (Hayes 3GPP TS 27.007, TS 27 ... Smart m2m industrial gsm gprs modem rs232 for meter reading,remote control,vending machine