... consists of Sub phone,Base Station,PBX,Wireless Exts Board. 2.4G Wireless PBX System is based on the digital PBX ... shopping malls, hotels and retail stores, which are typical of the wireless station roaming applications.WS824 2.4G Wireless PBX System Application ... Topology:Product Function:1) as normal operation of Sub Phone generally outgoing and incoming calls.2) ...