User's Manual

Table Of Contents
Each USB port supports a maximum of five supported and nonsupported devices that are connected to
the phone. Each device connected to the phone is included in the maximum device count. For example,
your phone can support five USB devices. Many third-party USB products count as multiple USB devices,
for example, a device containing USB hub and headset can count as two USB devices. For more information,
see the USB device documentation.
Note
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.
If you are using a locale that reads right to left, such as Arabic, the line button and session button locations
are swapped.
Note
Indicates an incoming call (flashing red) or new voice message (steady
red).
Handset light strip1
Cisco IP Phone 8841, 8851, and 8861 User Guide for Cisco Unified Communications Manager 10.5
7
Getting Started
Buttons and Hardware
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