IP Phone 7800 Series delivers advanced IP Telephony features and crystal clear wideband audio performance to deliver an easy-to-use, full-featured voice communications experience. The phone supports 16 lines and each line key is fully programmable. The 7800 Series is also more energy-efficient and eco-friendly, to support your green initiatives. Each phone supports Power-over-Ethernet (PoE) Class 1 and Cisco’s EnergyWise. A standard power-save option reduces power consumption during off-hours, to save money and maximize energy efficiency.