| Backlight, Caller ID, Energy Star, Environmentally Friendly, Headset Port, Network (RJ-45), PoE (RJ-45) Port, Speakerphone, USB | Yes |
| Base Unit Connectivity Technology | Corded |
| Brand Name | Cisco |
| Buttons & Keys Type | Programmable, Directory, Message, Line Select, Navigation, Hold Button, Call Transfer, Conference, Volume Control, Speaker, Headset, Mute |
| Color | Charcoal |
| Communication Protocols | SIP, LLDP-PoE, SDP, DHCP, RTP, RTCP, LLDP, LLDP-MED, SRTP |
| Country of Origin | Mexico |
| Depth | 1.6 |
| Dialer Type | Keypad |
| Environmental Certification | ENERGY STAR |
| 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 |
| Form Factor | Wall Mountable |
| Handset Connectivity Technology | Corded/Cordless |
| Height | 9 |
| Input Voltage | 48 V DC |
| IP Phone Technology | VoIP |
| Limited Warranty | 1 Year |
| Manufacturer | Cisco Systems, Inc |
| Manufacturer Part Number | CP-8851-K9= |
| Manufacturer Website Address | http://www.cisco.com |
| Number of Network (RJ-45) Ports | 2 |
| Power Source | AC Adapter |
| Product Model | 8851 |
| Product Name | 8851 IP Phone |
| Product Series | 8800 |
| Product Type | IP Phone |
| Quality of Service | 802.1Q VLAN Support, 802.1p/q |
| Screen Resolution | 800 x 480 |
| Screen Size, Total Number of Phone Lines | 5 |
| Screen Type | LCD |
| Voice Codec | G.711a, G.711u, G.722, G.729a, iLBC, iSAC |
| Weight (Approximate) | 2.58 lb |
| Width | 10.1 |
| Wireless Technology | Bluetooth |
