User's Manual

Table Of Contents
Access port (10/100/1000 PC) connection.5DC adaptor port (DC48V).1
Auxiliary port.6AC-to-DC power supply (optional).2
Handset connection.7AC power wall plug (optional).3
Analog headset connection (optional).8Network port (10/100/1000 SW) connection.
IEEE 802.3at power enabled.
4
Buttons and Hardware
Your phone provides quick access to your phone lines, features, and call sessions:
Programmable feature buttons (left side): Use to view calls on a line or access features such as Speed
Dial or All Calls. (These buttons are also called feature buttons.)
Session buttons (right side): Use to perform tasks such as answering a call, resuming a held call, or
(when not being used for an active call) initiating phone functions such as displaying missed calls. Each
call on your phone is associated with a session button.
Cisco IP Phone 8841, 8851, and 8861 User Guide for Cisco Unified Communications Manager 10.5
2
Getting Started
Buttons and Hardware
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