Cisco 8851NR User Manual

The Wallmount Kit for Cisco IP Phone 8800 Series and Wallmount Kit for Cisco IP Phone 8800 Series with
single KEM meet the 307.2 Protrusion Limits section of the Americans with Disabilities Act (ADA) ADAAG
requirement for mounting a phone on the wall.
The Wallmount Kit for Cisco IP Phone 8800 Video Series is slightly larger and does not meet the 307.2
Protrusion Limits section of the Americans with Disabilities Act (ADA) ADAAG requirement for mounting
a phone on the wall.
The following figure shows a side view of the phone with the wall mount kit installed.
Figure 9: Side View of the Phone Installed with the Wall Mount Kit
Phone Firmware and Upgrades
Your phone comes with firmware already installed, which is specific to the call control system that your phone
uses.
Occasionally, your administrator upgrades the phone firmware for you. This upgrade happens when you are
not using your phone because the phone resets to use the new firmware.
Postpone a Phone Upgrade
When new firmware is available, the Ready to upgrade window is displayed on your phone and a timer
begins a 15-second countdown. If you do nothing, the upgrade proceeds.
You can postpone your firmware upgrade for 1 hour and up to 11 times. The upgrade is also postponed if you
make or receive a phone call.
Procedure
Select Delay to postpone a phone upgrade.
CISCO 8800 SERIES
USER GUIDE
GoMomentum.com
888.538.3690
31

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