Cisco 8851NR User Manual

• End a call
• Change the headset volume for a call
• Redial a number
• View Caller ID
• Reject a call
• Divert a call
• Place a call on hold by answering an incoming call
• End a call by answering an incoming call
For more information, see the documentation from your Bluetooth headset manufacturer.
Related Topics
Configure a Headset on the Phone, on page 108
Audio Quality
Beyond physical, mechanical, and technical performance, the audio portion of a headset must sound good to
the user and to the party on the far end. Sound quality is subjective, and we cannot guarantee the performance
of any headsets. However, various headsets from leading headset manufacturers are reported to perform well
with Cisco IP Phones.
For additional information, see https://www.cisco.com/c/en/us/products/unified-communications/uc_endpoints_
accessories.html
Wired Headsets
A wired headset works with all Cisco IP Phone features, including the Volume and Mute buttons. These
buttons adjust the earpiece volume and mute the audio from the headset microphone.
When you install a wired headset, make sure you press the cable into the channel in the phone.
Failure to press the cable into the channel in the phone can lead to cable damage.
Caution
Wireless Headsets
You can use most wireless headsets with your phone. For a list of supported wireless headsets, see
http://www.cisco.com/c/en/us/products/unified-communications/uc_endpoints_accessories.html
Refer to your wireless headset documentation for information about connecting the headset and using the
features.
Connect a Headset to Your Phone
Each type of wired headset, adapter, or base connects to a phone using a different port and a different type of
connector and cable. Common types include an RJ connector, a USB connector, and a Y-cable.
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Cisco 8851NR Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Case material	Acrylonitrile butadiene styrene (ABS)
Product color	Charcoal
Wall mountable	Yes
Lines quantity	5 lines
Phonebook capacity	- entries
Number of VoIP accounts	-
Volume control	Digital
Display diagonal	5 \
Display resolution	800 x 480 pixels
Voice codecs	G.711Mu, G.711a, G.722, G.729A, iLBC
Number of microphones	1
Ethernet LAN data rates	10, 100, 1000 Mbit/s
Ethernet LAN interface type	Gigabit Ethernet
Supported network protocols	IEEE 802.3i/802.3u/802.3ab
Ethernet LAN (RJ-45) ports	2
Storage temperature (T-T)	-10 - 60 °C
Operating temperature (T-T)	0 - 40 °C
Operating relative humidity (H-H)	10 - 90 %
Number of handles included	- pc(s)

Weight and Dimensions

Depth	257.34 mm
Width	229.1 mm
Height	40 mm
Weight	1190 g