Wireless private branch exchange

Wherein a private branch exchange (104) is corresponding to the air interface of the charging power high gain of the information capacitor device and method. The wireless private branch exchange (104) comprises a handheld transceiver to seat (116), and private branch exchange of multiple terminal (122) are (118). A an information processing technology, the wireless communication network (102) is an information sending a wireless to PBX (104). An information of wireless communication network (102) transmission of HTS (116) is received. HTS a an information decoding, time from the GSM format to a protocol converting of ISDN format; and information connected with retransmit PBX (118). PBX (118) is connected with the signal route selection in a terminal (122). The output information processing method, HTS (116 PBX (118) for outputting information. HTS (118) performing etching of ISDN a protocol converting of GSM, and output information coding. The wireless communication network (102) and output signal is a second volume the external telephone network and terminal. The displaying for providing performing and invention can be used in the digital technique for mobile communication system global protocol.