A VoIP telephone system, also known as an IP PBX or cloud PBX, is a private branch exchange (PBX) that uses Voice over Internet Protocol (VoIP) technology to transmit voice calls over an IP network, rather than the traditional public switched telephone network (PSTN). This allows businesses to make and receive calls over the internet, using their existing data network and eliminating the need for separate phone lines.
VoIP telephone systems offer a number of benefits over traditional PBX systems, including lower costs, greater flexibility, and increased features and functionality. VoIP systems are also more scalable than traditional PBX systems, making them ideal for businesses of all sizes.