Cisco 8831NR Administration Manual page 56

Wired Extension Microphone Kit
Your conference phone has a 10/100 Base-T autosensing Ethernet port. This port supports Mbps half- or
full-duplex connections to external devices. You can use either Category 3 or 5, or 5e cabling for 10-Mbps
connections, but you must use Category 5 or 5e for 100 Mbps connections.
Use the ethernet network port to connect the conference phone to the network. You must use a straight-through
cable on this port. The conference phone can also obtain inline power from a switch over this connection
(PoE).
Related Topics
Wired Extension Microphone Kit
The optional wired extension microphone kit includes two wired omni-directional microphones. Connecting
a microphone kit enhances the room coverage of the conference phone. The sound base has two wired
microphone ports and you can connect one or both wired microphones.
If the conference phone is connected to another sound base in Linked Mode, the primary base station supports
one or two wireless microphones, or it supports one wired microphone. The secondary unit supports only one
wired microphone; a wireless microphone cannot be connected to a secondary Sound Base. You cannot mix
microphone kits: if you plan to connect a microphone to both sound bases, they must both be wired microphones.
Note Wired and wireless microphones cannot be used at the same time, and the wireless microphones have a higher
priority. Attempting to connect a wired microphone to a conference phone that has paired or connected channels
results in a warning to the user that the wired microphone is disabled. To solve this problem, unpair any paired
or connected wireless microphones before connecting a wired microphone.
Table 16: Wired Microphone Buttons
Item
1
Cisco Unified IP Conference Phone 8831 and 8831NR Administration Guide
46
Conference Phone Power, on page 35
Phone Connections, on page 48
Cisco Unified IP Conference Phone Installation
Description
Mute button.