What is ip pbx?
An IP PBX takes the place of the PBX you may already have for your company’s PSTN calls. Like its PSTN cousin, an IP PBX (for private branch exchange) is an electronic switchboard that receives, routes, holds, forwards to voice mail, or otherwise manipulates calls that arrive over the Internet, rather than via the PSTN. It may be fully automatic or have a human receptionist who routes incoming calls from a main IP phone number to internal IP numbers or extensions. Where a PSTN PBX can connect many incoming and internal phone lines through a set of mechanical or electronic switches, an IP PBX will be mechanically simpler, typically either software that resides on a server or a small, independent server that connects with your existing data network.
