Your Phone• The Cisco IP Phone 8800 Series, page 1• New and Changed Information, page 2• Phone Setup, page 4• Activate and Sign In to Your Phone, page 9• Self Care Portal, page 10• Buttons and Hardware, page 12• Phone Firmware and Upgrades, page 19• Energy Savings, page 19• Phone Line Modes, page 20• Additional Help and Information , page 21The Cisco IP Phone 8800 SeriesThe Cisco IP Phones 8811, 8841, 8845, 8851, 8851NR, 8861, 8865, and 8865NR deliver easy-to-use,highly-secure voice communications.Cisco IP Phone 8800 Series User Guide1