An IP personal department change (PBX) is a phone system inside an enterprise that switches calls between VoIP (Voice over Web Protocol) telephones, conventional PSTN (Public Switched Phone Community) strains, and different communication units. In contrast to a conventional PBX, which makes use of a proprietary protocol, an IP PBX makes use of the Web Protocol (IP) to attach and handle calls.
IP PBXs provide a number of advantages over conventional PBXs, together with:
