A VoIP (Voice over Internet Protocol) gateway is a device that facilitates the transmission of voice communications over the internet by converting traditional analog voice signals into digital data packets. This technology enables seamless communication between traditional telephone networks and IP-based networks, allowing users to make and receive calls using internet connectivity. VoIP gateways can support various protocols and codecs, ensuring compatibility with different systems and enhancing call quality. By integrating VoIP gateways into a communication infrastructure, businesses can reduce costs, improve scalability, and enhance the flexibility of their telephony solutions.