Cheapest GSM desktop phone Using SIM card, support SMS. Caller ID GSM desktop phoneMain Functions: 1. Suitable for GSM 900/1800 MHz or 850/1900 MHz, using SIM card2. Can making calls via GSM3. Big LCD display which can show signal intensity, clock, battery consumption, new message, startups of alarm and so on4. Caller ID5. Language available: English, Chinese6. Support SMS, Call log, phonebook, ...