•  Full-featured 8-line business-class IP phone supporting Power over Ethernet (PoE) •  Connects directly to an Internet telephone service provider or to an IP private branch exchange (PBX) •  Easy installation and highly secure remote provisioning, as well as menu-based and web-based configuration •  Wideband audio for unsurpassed voice clarity and enhanced speaker quality •  Paper label insert for buttons to indicate speed dials, shared lines, or extensions •  Supports up to two Cisco SPA500S Expansion Module, adding an additional 64 buttons •  Supports both Session Initiation Protocol (SIP) and Smart Phone Control Protocol (SPCP) with the Cisco Unified Communications 500 Series for Small Business