참고 사항: | GSM Voice Communications: Half Rate/Full Rate/ Enhanced Full Rate Circuit Switch Data: Asynchronous, Transparent / Non-Transparent Mode, Up to 14.4Kbps Short Message Service (SMS): MT/MO/CB FAX: Group 3 / Class 2.0 SIM: Small 3/5V SIM card holder GPRS: Class B, Multi-slot Class 8 (4 down/1 up/5 per frame), Simultaneous network registration of GSM & GPRS AT Command Set: complying with GSM 07.05, 07.07 including GPRS-specific or extended commands Form Factor: Type-1 extended Compact Flash Card including 360° Turn-able Helix Antenna External Headset for Audio Input / Output |