Cisco Unified IP Phone 9951
1
USB port
2
Accessory connector; for example, for
connecting a Cisco Unified IP Phone Expansion
Module
Each USB port supports a maximum of five supported and nonsupported devices that are connected to
Note
the phone. Each device connected to the phone is included in the maximum device count. For example,
your phone can support five USB devices such as three Cisco Unified IP Color Key Expansion modules,
one hub, and one other standard USB device on the side port and five additional standard USB devices
on the back port. 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.
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 Unified IP Phone 8961, 9951, and 9971 Administration Guide for Cisco Unified Communications Manager
10.0
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3
Speaker port for output to optional
external speakers
4
Microphone port for input from optional external
microphone