Tech specs
Brand
Cisco
Product Line
Cisco IP Phone
Model
8851
Manufacturer
Cisco Systems
Bluetooth Profiles
Hands-Free Profile (HFP), Phonebook Access Profile (PBAP)
IP Telephony Network Ports
2 x Ethernet 10Base-T/100Base-TX/1000Base-T
Network Features
Class 3 PoE
Network Protocols
Cisco Discovery Protocol (CDP), DNS, HTTP, HTTPS, IP, Link Layer Discovery Protocol - Media Endpoint Discovery (LLDP-MED), RTCP, RTP, SRTP, TFTP, UDP
Phone Connections
Electronic hook switch (EHS), Headset jack / RJ-9, USB
Backlit Display
Yes
Color Depth
24-bit (16.7 million colors)
Color Support
Color
Display Diagonal Size
5 inch
Display Diagonal Size (metric)
12.7 centimetre
Display Location
Base
Display Resolution
800 x 480 pixels
Display Type
LCD display
Indicators & Controls
Headset, Speakerphone indicator, Voice message waiting indicator
Multiple Conferencing
Yes
Speakerphone
Yes
Voice Codec
G.711a, G.711u, G.722, G.729a, iLBC, iSAC
Additional Functions
Call timer, Intercom
Call Services
Call Forwarding, Call Hold, Call Transfer, Call Waiting, Caller ID, Message Waiting Capability, Voicemail
Dialer Location
Base
Key Expansion Module Max
2
Lines Supported
5 lines
Main Features
Integrated Ethernet switch, Multiple VoIP protocol support
Packaged Quantity
1
Placing/Mounting
Table mount, Wall-mountable
Power Over Ethernet (PoE) Support
Yes
Product Type
VoIP phone
Programmable Buttons
5
Quality of Service
IEEE 802.1p, IEEE 802.1Q (VLAN)
Security
IEEE 802.1X, TLS
VoIP
Yes
VoIP Protocols
RTCP, RTP, SDP, SIP, SRTP
Wireless Interface Provided
Bluetooth
Base Depth
4 centimetre
Base Height
22.91 centimetre
Base Weight
1.19 kilogram
Base Width
25.734 centimetre
Body Material
ABS plastic
Color
Charcoal
Color Category
Black, Gray
ENERGY STAR Certified
No
EPEAT Compliant
No
TCO Certified
No
Hearing Aid Compatible
Yes
Accessories
- CDW Recommends (8) total accessories
- Headsets (5) total accessories
- Racks & Enclosures (1) total accessories
- Phones & Video Conferencing (1) total accessories
View More Accessories