The German manufacturer INSYS icom offers 2G & 3G GSM modules for the M2M area with the QLM family. The QLM family offers the possibility of programming their own applications of up to 150MB (of which 100MB is data storage) via the integrated Linux Sandbox directly onto the module. INSYS icom places special value on secure data transmission via integrated open VPN (Client & Server). Because the QLM family offers a standardised interface, you can interchange GSM, Ethernet and WLAN modules. All modules provide additional Ethernet, RS-232 and I2C.