... dialed calls . Handset function: 1. 2.4 G digital wireless phone.2. Locking keypad.3. Calculating call duration.4. Adjusting ... : 10%-95%3. Atmospheric Pressure: 86106kpa4. Base Unit: Handset:Working Power: DC5V 1000mA Charge Power: DC 9V5. Back-up Battery ... products which can be divided into sixteen category, including wireless telephone, GSM terminal, wireless network card, PBX related to GSM, CDMA, ...