... dialed calls. Handset function: 1. 2.4 G digital wireless phone.2. Locking keypad.3. Calculating call duration.4. Adjusting ... terminal, wireless network card, PBX related to GSM, CDMA, TD-SCDM, WCDMA.Now, our corporation gains twelve patent and succeed in passing ... ISO 9001, CE, ROSH etc. 2.4G GSM fixed wireless phone ...