An IP phone system, or Internet Protocol phone system, is a modern communication solution that uses the internet to transmit voice calls instead of traditional phone lines. It operates through VoIP (Voice over Internet Protocol) technology, enabling seamless audio, video, and messaging integration. The benefits include cost savings on long-distance calls, scalability to accommodate growing businesses, and flexibility to connect remote teams. With advanced features like call forwarding, conferencing, and voicemail-to-email, IP phone systems enhance productivity.