The Fanvil X4 is an enterprise-grade SIP desk phone designed for modern business communication. It supports HD Voice for clear, natural sound quality and includes Power over Ethernet (PoE) for easy installation without separate power adapters. The phone features a dual-color display, allowing users to view call information and function keys more efficiently. With its advanced call-management features, the Fanvil X4 is a powerful, reliable solution for organizations that need professional, high-performance telephony.