... Toolkit7,Control via AT commands (Hayes, 3GPP TS 27.007 and 27.005)8,TCP/IP stack access via AT commands9 ... 26,High quality voice support for handset, headset and handsfree operation7,FR, HR, EFR and AMR speech codec support8,Integrated TTY modemSpecial Features1 ... ,Serial interface modem driver for Microsoft® Windows 7™, Windows XP™ and Windows Vista™2,Firmware update via serial interface3,Real time ...