An IP private branch exchange (PBX) is a telephone system within an enterprise that switches calls between VoIP (Voice over Internet Protocol) phones, traditional PSTN (Public Switched Telephone Network) lines, and other communication devices. Unlike a traditional PBX, which uses a proprietary protocol, an IP PBX uses the Internet Protocol (IP) to connect and manage calls.
IP PBXs offer several benefits over traditional PBXs, including:
