CP-8851NR-K9 – 5-Line No-Radio IP Phone – USB and KEM – Enhanced UCL

5.06 reviews6 Questions
List Price: $2,115.25 76% OFF
$500.00
Price Alert
In StockShips in as little as 1 business day Brand New
Related models
Cisco SN CheckSN verification before shipment.Verify authenticity3-Year WarrantyExtended, enterprise-gradeWarranty terms14-Day ReturnsStraightforward RMA processReturn policyExpress Shipping2-6 Business Daysvia UPS, FedEx, DHL and more
Trusted & Secure Payments

Why Layer23-Switch

Stocked, Shipped and Supported by One Team

Founded
Customers
Units shipped
Countries

Inventory You Can See

Cisco stock on hand
Models ready to ship
Warehouse space

Ships in 1 Business Day

In-stock orders leave our Hong Kong or U.S. warehouse within 1 business day after payment, with tracking by email.

DHL FedEx UPS Duties included: US · CA · UK

LSCare Warranty

3years on enterprise equipment

  • Advance replacement for in-stock models
  • New unit for dead-on-arrival
  • 14-day returns on sealed items

Free CCIE Support

Certified engineers help before and after you buy. Reply within 1 business day by email or live chat.

Part number check Configuration Troubleshooting

Verify Before You Pay

100%factory-sealed

Get label and serial photos before shipment, and check every serial number with Cisco.

CP-8851NR-K9 Description

The CP-8851NR-K9 is a Cisco IP Phone 8800 Series no-radio desk phone for sites that need Key Expansion Modules without Bluetooth. The phone has five programmable line and feature keys, a 5-inch 800 x 480 color display, a two-port Gigabit Ethernet switch and a side USB port. The phone has no integrated Bluetooth radio and supports one Key Expansion Module on PoE Class 3 hardware before V08 and two on Class 4 hardware from V08.

Quick Specs

Parameter

Specification

Product ID

CP-8851NR-K9

Product type

Cisco IP Phone 8851NR no-radio desk phone

Color

Charcoal

Radio profile

No integrated Bluetooth radio

Programmable line and feature keys

5

Display

5 in. 800 x 480 24-bit color WVGA display

USB

Side USB port

Integrated switch

Internal 2-port 10/100/1000BASE-T Cisco Ethernet switch

Key expansion module support

Up to two Cisco IP Phone 8800 Key Expansion Modules

PoE class

IEEE PoE Class 3 before hardware V08 and Class 4 for hardware V08 and above

CUCM license

Enhanced User Connect License

Application Scenarios

Offices Without Bluetooth Radios

Offices that want HD audio and Key Expansion Module support without a Bluetooth radio on the desk can place the phone, which has no integrated Bluetooth radio.

Reception Desk With Expansion Keys

A reception or shared-line position can grow from 5 or 10 line buttons to 61 or 66 with up to two Cisco IP Phone 8800 Key Expansion Modules.

Shared Desk With A PC

A desk with a single network drop connects the phone and a co-located PC through the internal two-port Gigabit Ethernet switch.

Product Comparison

Parameter

CP-8851NR-K9

CP-8851-K9

CP-8851-W-K9

Display

5 in. 800 x 480 24-bit color WVGA

5 in. 800 x 480 24-bit color WVGA

5 in. 800 x 480 24-bit color WVGA

Programmable line and feature keys

5

5

5

Integrated switch

10/100/1000BASE-T, 2-port

10/100/1000BASE-T, 2-port

10/100/1000BASE-T, 2-port

PoE class

Class 3 before hardware V08, Class 4 from V08

Class 3 before hardware V08, Class 4 from V08

Class 3 before hardware V08, Class 4 from V08

Bluetooth

No integrated radio

Bluetooth 3.0 EDR Class 1

Bluetooth 3.0 EDR Class 1

USB

Side USB port

Side USB port

Side USB port

Key expansion module support

Up to 2

Up to 2

Up to 2

CP-8851NR-K9 and CP-8851-K9 are the same 8851 hardware with five line keys, a gigabit switch, a side USB port and up to two Cisco 8800 KEMs, but CP-8851NR-K9 has no integrated Bluetooth radio while CP-8851-K9 has Bluetooth 3.0 EDR Class 1, so the NR model suits sites that want HD audio and KEMs without Bluetooth. Buyers who need a white phone or Bluetooth headset pairing order CP-8851-W-K9 or CP-8851-K9, since CP-8851NR-K9 comes only in Charcoal. A desk that needs three KEMs and still no radio moves to CP-8865NR-K9, which takes up to three KEMs, and one that also needs Wi-Fi moves to CP-8865-K9.

Ordering Checklist

  • Switch PoE class and KEM count: Hardware before V08 is Class 3 and powers 1 KEM on PoE; V08 and later is Class 4 and powers 2 KEMs. A phone on a Class 3 switch port cannot run a second KEM on PoE.
  • Power Cube 4 for two KEMs on Class 3: A phone below hardware V08, or one on a Class 3 switch port, needs CP-PWR-CUBE-4= (CP-PWR-CUBE-4-S= with switch) plus one cord from CP-PWR-CORD-{AP,AR,AU,BZ,CE,CN,JP,NA,SW,UK}= to run two KEMs. V08 and later hardware on a Class 4 port runs two KEMs on PoE.
  • KEM PID: Order CP-8800-A-KEM= for each expansion module, not CP-8800-V-KEM=. V-KEM is the 8865 module; the 8851 order table lists CP-8800-A-KEM=.
  • Wall mount: Order CP-8800-WMK= for the phone alone, or CP-8800-A-KEM-WMK= for a phone with one KEM. A wall kit exists only for the phone or phone plus a single KEM.

Product Front

The following table describes the Cisco IP Phone 8800 Series Buttons.

The Cisco IP Phone 8800 Series has two distinct hardware types:

  • Cisco IP Phones 8811, 8841, 8851, 8851NR, and 8861—do not have a camera.
  • Cisco IP Phones 8845, 8865, and 8865NR—have a built-in camera.

1

Incoming call or voicemail indicator

2

Camera (Cisco IP Phone 8845 and 8865)

3

Feature and session buttons

4

Softkeys

5

Back, Navigation cluster, and Release

6

Hold, Transfer, and Conference

7

Headset, Speakerphone, and Mute

8

Voicemail, Applications, and Directory

9

Volume

Specifications

Parameter Specification Parameter Specification
Product ID CP-8851NR-K9 Cisco ordering ID CP-8851NR-K9=
Product type Cisco IP Phone 8851NR no-radio desk phone Color Charcoal
No-radio comparison 8851NR has no integrated Bluetooth radio Standard charcoal comparison CP-8851-K9= is Cisco IP Phone 8851, Charcoal
White comparison CP-8851-W-K9= is Cisco IP Phone 8851, White Programmable keys 5
Display 5 in. 800 x 480 24-bit color WVGA display USB Side USB port
Ethernet switch Internal 2-port 10/100/1000BASE-T Cisco Ethernet switch PC connectivity Single LAN connection for phone and co-located PC
Key expansion module support Up to two Cisco IP Phone 8800 KEMs Expansion button range From 5 or 10 line buttons to 61 or 66 line buttons with KEMs
PoE class IEEE PoE Class 3 before hardware V08 and Class 4 for hardware V08 and above PoE standards Compatible with IEEE 802.3af and IEEE 802.3at switch blades
Power input rating 0.917A, 48V DC Local power option Cisco IP Phone Power Cube 4 with corresponding AC country cord
CUCM support Cisco Unified Communications Manager 12.5 and later Unified CME support 10.0 and later through fast track
BE 6000 support 8.6.2, 9.1.2, 10.5.2, 11.0 and later HCS support 8.6.2 and later using supported UCM versions
CUCM license Enhanced User Connect License Signaling protocol Session Initiation Protocol
Codec support G.711, G.722, G.722.2, G.729ab, iLBC, iSAC, OPUS QoS 802.1Q/p
Discovery protocols Cisco Discovery Protocol, LLDP-MED Switch speed Auto-negotiation
Physical security Kensington Security Slot compatible Foot-stand positions 35 degrees and 50 degrees
Wall mounting Optional wall-mount kit available separately Dimensions 9.02 x 10.13 x 1.57 in. excluding foot stand
Weight 1.19 kg (2.62 lb) with handset Operating temperature 0°C to 40°C (32°F to 104°F)
Operating humidity 10% to 90%, noncondensing Phone casing composition Polycarbonate ABS textured plastic

Quality Certifications

Customer Reviews

Write A Review
5.0
(6 reviews)
5 Stars
6
4 Stars
0
3 Stars
0
2 Stars
0
1 Stars
0
    Ralph Gupta
    Posted on 09/04/2026
    Verified Buyer
    5.0

    Layer23 shipped ahead of the quoted lead time. Pleasant surprise.

    Robert Collins
    Posted on 16/03/2026
    Verified Buyer
    5.0

    Asked about lead times. They were upfront and set accurate expectations.

    Connor Murray
    Posted on 04/02/2026
    Verified Buyer
    5.0

    Tried several resellers before settling on Layer23. Best combination of price and reliability.

    Eugene Porter
    Posted on 12/07/2024
    Verified Buyer
    5.0

    Technically speaking, the lack of Bluetooth/Wi-Fi is a feature here. Authentication verified.

    Security Officer
    Posted on 22/03/2024
    Verified Buyer
    5.0

    NR (No Radio) model is required for our SCIF. Glad you stock these specific SKUs.

Questions & Answers

  • Which call platforms does CP-8851NR-K9 register to?

    CP-8851NR-K9 registers to Cisco Unified Communications Manager 12.5 and later with an Enhanced User Connect License. Signaling uses Session Initiation Protocol, and Cisco Hosted Collaboration Solution 8.6.2 and later is also listed.
  • What PoE class does CP-8851NR-K9 need, and what powers two Key Expansion Modules?

    CP-8851NR-K9 needs IEEE PoE Class 3 before hardware V08 and Class 4 for hardware V08 and above. A phone below V08, or on a Class 3 switch port, needs CP-PWR-CUBE-4= (CP-PWR-CUBE-4-S= with switch) plus a country power cord to run two Key Expansion Modules.
  • Which spare parts can I order for CP-8851NR-K9?

    The 8851 datasheet lists CP-DX-HS= (Charcoal) and CP-DX-W-HS= (White) handsets, with handset cords CP-DX-CORD= and CP-DX-W-CORD=. The foot stand is CP-8800-FS=, and the bezels are CP-8800-B-BEZEL= (black) and CP-8800-S-BEZEL= (silver). Order them when a handset, cord, stand or bezel needs replacing.
  • Which Cisco Unified CME release supports CP-8851NR-K9?

    Cisco Unified CME 10.0 with IOS load 15.3(3)M, per the IP Phone 8800 release notes. CP-8851NR-K9 can register to CME, while the 8845 and 8865 models cannot. A CME deployment needs the IOS load at that level before the phone registers.
  • Which IP Phone 8800 firmware releases cover CP-8851NR-K9?

    Both 14.3(1)SR3 and 14.4(1)SR1 cover CP-8851NR-K9, per the IP Phone 8800 release notes. The 14.4(1)SR1 release leaves out the 8845 and 8865, so desks that mix those models with this phone stay on 14.3(1)SR3.
  • How much current does the side USB port on CP-8851NR-K9 supply?

    The side USB port supplies 500 mA at 5V, per the Cisco IP Phone 8851NR datasheet. A USB headset or a small accessory fits within that limit, and the same datasheet lists up to two Key Expansion Modules for the phone.

Warranty

Visit How to Pay page for more information

FREE NETWORK TOOLS

Verify, plan, and comparewith confidence

Use practical tools to check device details, review lifecyclemilestones, and compare hardware before you buy.

DataSheet Downloads

  • CP-8851NR-K9 Datasheet