The Cisco® IP Phone 8851 is a business-class collaboration endpoint that combines high-fidelity, reliable, secure, and scalable voice communications with Cisco Intelligent Proximity for telephony integration for personal mobile devices to support midsize to large enterprise businesses.
With the Cisco IP Phone 8851, you can increase personal productivity through an engaging user experience that is both powerful and easy-to-use. The IP Phone 8851 combines an attractive new ergonomic design with wideband audio for crystal clear voice communications,

Product Name Cisco Uc Phone 8851
Product Type IP Phone
PoE (RJ-45) Port Yes
Connectivity Technology Cable
IP Phone Technology VoIP
Form Factor Wall Mountable
Speakerphone Yes
Green Compliant Yes
Green Compliance Certificate/Authority ENERGY STAR
USB Yes
Number of Network (RJ-45) Ports 2
Network (RJ-45) Yes
Caller ID Yes
Height 9"
Width 10.1"
Depth 1.6"
Communication Protocols SIP
LLDP-PoE
SDP
DHCP
RTP
RTCP
LLDP
LLDP-MED
SRTP
Product Series 8800
License Unified Communications Manager
Unified Communications Manager Express
User Connect License
Product Model 8851
Power Source AC Adapter
Buttons & Keys Type Programmable
Directory
Message
Line Select
Navigation
Hold Button
Call Transfer
Conference
Volume Control
Speaker
Headset
Mute
Backlight Yes
Headset Port Yes
Certifications & Standards
CE Markings per directives 2004/108/EC and 2006/95/EC
Safety:
UL 60950 Second Edition
CAN/CSA-C22.2 No. 60950 Second Edition
EN 60950 Second Edition (including A11 & A12)
IEC 60950 Second Edition (including A11 & A12)
AS/NZS 60950
GB4943
EMC - Emissions:
47CFR Part 15 (CFR 47) Class B
AS/NZS CISPR22 Class B
CISPR22: 2005 w/Amendment 1: 2005 Class B
EN55022: 2006 w/Amendment 1: 2007 Class B
ICES003 Class B
VCCI Class B
EN61000-3-2
EN61000-3-3
KN22 Class B
EMC - Immunity:
EN55024
CISPR24
EN60601-1-2
KN24
Armadillo Light
Telecom:
FCC Part 68 HAC
CS-03-HAC
AS/ACIF S004
AS/ACIF S040
NZ PTC 220
Industry Standards: TIA 810 and TIA 920
Industry Standards: IEEE 802.3 Ethernet, IEEE 802.3af and 802.3at
Korea (RRA Public Notification 2010-36, Nov 01, 2010)
Korea (RRA Announce 2011-2, Feb 28, 2011)
FCC Part 2.1093 (BT RF Exposure TR)
RSS-102 (BT RF Exposure TR)
RSS-210
EN 300.328
EN50385 (BT RF Exposure TR)
EN 301-489-1
EN 301-489-17
NCC LP0002
Korea (RRL No. 2006-128, RRL No. 2006-129)
Japan Bluetooth GFSK/EDR
Voice Codec G.711a
G.711u
G.722
G.729a
iLBC
iSAC
Dialer Type Keypad
Quality of Service 802.1Q VLAN Support
802.1p/q
Features Messages
Hold
Call Resume
Call Transfer
Conference Call
Hearing Aid
Hands-free
Speed Dial
Message Waiting LED
Indicator
Security
Adjustable Display
Auto-answer
(BLF) Busy Lamp Field
Call Forwarding
Call History
Call Park
Call Pick-up
Date and Time
Call Waiting
Group Pick-up
Intercom
Music on Hold
Mute
Distinctive Ringing
Redial
Call Share
Voice Mail
Multilingual Menu
Bluetooth
Screen Size 5"
Screen Type LCD
Input Voltage 48 V DC
Screen Resolution 800 x 480
Limited Warranty 1 Year