网络释义
1)private automatic exchange(PAX),私用自动交换机2)private automatic branch exchange(PABX),私用自动交换分机3)private branch exchange PBX,私用交换机4)private automatic switching system(PASS),私用自动交换系统5)Private Automatic Branch Exchange(PABX ),用户自动交换机6)PABE (Private Automatic Branch Exchanger),专用自动交换机