Cisco 8851NR User Manual

Confirm that Your Headset Is Registered
Procedure
Check to see if your headset is registered with the phone.
Step 1 Press Applications
Step 2 Navigate to Accessories. Select Show detail.
No Sound in Headset
Problem
There is little or no sound coming through the headset.
Solution
Check the volume level on your headset by pressing the volume controls to adjust the sound level. If the
problem continues, use the following work flow to troubleshoot your problem.
Figure 22: No Audio Workflow
Poor Audio
Problem
Your headset is functioning, but the audio quality is poor.
Solution
Use the following work flow to troubleshoot your problem.
CISCO 8800 SERIES
USER GUIDE
GoMomentum.com
888.538.3690
113

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