8 Line With Display PoE and PC Port? Full-featured 8-Line business-class supporting Power over Ethernet (PoE) ? Monochrome backlit Display for ease of use aesthetics and on-screen applications ? Connects directly to an Internet telephone service provider or to an IP private branch exchange (PBX) ? Wideband audio for unsurpassed voice clarity and enhanced speaker quality ? Easy installation and highly secure remote provisioning as well as menu-based and web-based configuration ? Supports up to two ® SPA 500S Expansion Module adding up to 64 additional buttons* ? Supports both Session Initiation Protocol (SIP) and Smart Phone Control Protocol (SPCP) With the Unified Communications 500 Series for Small Business Comprehensive Interoperability and SIP-Based Feature Set. 8 Line With Display PoE and PC Port? Full-featured 8-Line business-class supporting Power over Ethernet (PoE) ? Monochrome backlit Display for ease of use aesthetics and on-screen applications ? Connects directly to an Internet telephone service provider or to an IP private branch exchange (PBX) ? Wideband audio for unsurpassed voice clarity and enhanced speaker quality ? Easy installation and highly secure remote provisioning as well as menu-based and web-based configuration ? Supports up to two ® SPA 500S Expansion Module adding up to 64 additional buttons* ? Supports both Session Initiation Protocol (SIP) and Smart Phone Control Protocol (SPCP) With the Unified Communications 500 Series for Small Business Comprehensive Interoperability and SIP-Based Feature Set
