Simplify & improve communications companywide with Cisco SPA 500 Series IP Phones, part of the Cisco Small Business Pro Series of network solutions. These phones offer enough features to serve everyone from manufacturing floor staff & cubicle workers to executives & remote employees. Your people stay productive, & enjoy access to voice & data communications wherever they are, but your costs stay low. These affordably priced, reliable, & stylish IP phones are intuitive & easy-to-use. They also offer a rich user experience with wideband audio to connect employees & offices, application support to enhance productivity, & encryption for enhanced security. The SPA 500 Series delivers a versatile array of features with investment protection to help your small business succeed. Wideband audio for unsurpassed voice clarity & enhanced speaker quality Monochrome or color* backlit display for ease of use, aesthetics, & onscreen applications Connects directly to a hosted IP telephony service or an IP private branch exchange (PBX) Easy installation & highly secure remote provisioning, as well as menu-based & web-based configuration Supports up to two Cisco SPA500S 32-Button Attendant Consoles, adding up to 64 additional buttons** Power over Ethernet (Po E) Supports both Session Initiation Protocol (SIP) for Cisco SPA9000, open source, & hosted telephony solutions & Smart Phone Control Protocol (SPCP)