An IP PBX is a modern telephony system that enables businesses to manage and route calls over an IP network. Unlike traditional PBX systems, an IP PBX uses VoIP (Voice over Internet Protocol) technology, offering cost-effective communication, seamless scalability, and advanced features like call forwarding, conferencing, auto-attendants, and voicemail-to-email. It enhances internal and external communication, making it an ideal solution for businesses of all sizes looking to improve efficiency and reduce telephony costs.