Power Outage 11
Power Reduction 11
Power Negotiation Over LLDP 12
Network Protocols 12
VLAN Interaction 17
Cisco Unified Communications Manager Interaction 17
Cisco Unified Communications Manager Express Interaction 18
Voice Messaging System Interaction 18
Phone Startup Overview 19
External Devices 20
USB Port Information 21
Phone Configuration Files 21
Phone Behavior During Times of Network Congestion 22
Phone Behavior on a Network with Two Network Routers 22
CHAPTER 3
Cisco IP Phone Hardware 23
Phone Overview 23
Cisco IP Phone 8811 25
Phone Connections 25
Cisco IP Phones 8841 and 8845 26
Phone Connections 27
Cisco IP Phones 8851 and 8851NR 27
Phone Connections 28
Cisco IP Phones 8861, 8865, and 8865NR 29
Phone Connections 29
Buttons and Hardware 30
Softkey, Line, and Feature Buttons 32
PART II
Cisco IP Phone Installation 35
CHAPTER 4
Cisco IP Phone Installation 37
Verify the Network Setup 37
Enable Autoregistration for Phones 38
Install Cisco IP Phone 39
Set Up Phone from Setup Menus 41
Cisco IP Phone 8800 Series Administration Guide for Cisco Unified Communications Manager
iv
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