... , Internet integration. It supports all the functions of Asterisk PBX systems needed.Features:1,Support the access of wireless (GSM and ... PSTN, Phone.2,Supports GSM, CDMA two kinds of wireless communication standard.3,Support GSM: 850M/900M/1800M/1900M, ... PBX3, GSM (CDMA) Call back4, GSM (CDMA) wireless bypasses system5, GSM (CDMA) wireless call centre.Hardware and software requirements:1, Interface ...