... capacity,Optimized call route,SMS functions,Caller's ID. PBX PBX System Feature: PBXs, a popular technology in ... connected to PSTN by fixed lines. But today’s PSTN, which include fixed line PSTN, wireless CDMA ... cost.Here are the main functions of TelePower’s wireless PBX and IP-PBX 1. Strong interface ... a user’s computer, the computer can display caller’s name and caller’s number while user’s phone ring ...