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Cisco 8851NR User Manual

Cisco 8851NR
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View the Progress of a Phone Firmware Upgrade
During a phone firmware upgrade, you can view the upgrade progress.
Procedure
Step 1 Press Applications .
Step 2 Select Phone information > Show detail.
Step 3 Press Exit.
Energy Savings
Your administrator can reduce the amount of power your phone screen uses when you're not using your phone.
Your administrator can set up these energy-saving levels on your phone:
Power Save—The backlight or screen turns off when the phone is inactive for a set interval.
Power Save Plus—Your phone screen turns on and off at times that are based on your work schedule. If
your work hours or work days change, you can contact your administrator to reconfigure your phone.
For example, your administrator can set your phone to alert you 10 minutes before it turns off. You see the
Select button light up and you get a message that your phone is turning off soon. You get notifications at these
intervals:
Four rings at 10 minutes before power off
Four rings at 7 minutes before power off
Four rings at 4 minutes before power off
15 rings at 30 seconds before power off
If your phone is active, it waits until it has been inactive for a set interval before it notifies you of the pending
power shutdown.
Turn On Your Phone
When your phone turns off to save energy, the phone screen is blank and the Select button lights up.
Procedure
Press Select to turn your phone back on.
CISCO 8800 SERIES
USER GUIDE
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Cisco 8851NR Specifications

General IconGeneral
MountingDesk/Wall
Handset typeWired handset
Product typeIP Phone
Case materialAcrylonitrile butadiene styrene (ABS)
Product colorCharcoal
Wall mountableYes
Lines quantity5 lines
Phonebook capacity- entries
Number of VoIP accounts-
Volume controlDigital
Display diagonal5 \
Display resolution800 x 480 pixels
Voice codecsG.711Mu, G.711a, G.722, G.729A, iLBC
Number of microphones1
Ethernet LAN data rates10, 100, 1000 Mbit/s
Ethernet LAN interface typeGigabit Ethernet
Supported network protocolsIEEE 802.3i/802.3u/802.3ab
Ethernet LAN (RJ-45) ports2
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 IconWeight and Dimensions
Depth257.34 mm
Width229.1 mm
Height40 mm
Weight1190 g

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