Cisco 8831 Features

For your conference phone to work, it must be connected to the corporate IP telephony network.
Display Control Unit
The Display Control Unit (DCU) is tethered to the Sound Base via a micro USB connector.
You can use the graphic and table below to identify buttons and hardware on the DCU.
Cisco Unified IP Conference Phone 8831 User Guide for Cisco Unified Communications Manager 9.3
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Features of your Cisco Unified IP Phone
Display Control Unit

Cisco 8831 Specifications

General

Headset Port	No dedicated headset port
Wireless	No
Bluetooth	No
USB Port	No
Video Support	No
Audio	Full-duplex speakerphone
Connectivity	10/100 Ethernet
Power	Power over Ethernet (PoE)
Network Protocols	SIP
Weight	1.1 kg
Audio Codecs	G.711, G.722, G.729, iLBC
Network Ports	2 x Ethernet ports
Security	TLS