CP-8851NR-K9 – 5-Line No-Radio IP Phone – USB and KEM – Enhanced UCL
Why Layer23-Switch
Stocked, Shipped and Supported by One Team
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.
LSCare Warranty
3years on enterprise equipment
Free CCIE Support
Certified engineers help before and after you buy. Reply within 1 business day by email or live chat.
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 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.
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.
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-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 4723_c3c6f1-18> |
Incoming call or voicemail indicator 4723_173eb5-52> |
|
2 4723_41cb43-a1> |
Camera (Cisco IP Phone 8845 and 8865) 4723_dc6b69-6a> |
|
3 4723_09a70d-3c> |
Feature and session buttons 4723_287849-68> |
|
4 4723_a33403-46> |
Softkeys 4723_1be101-64> |
|
5 4723_058249-2a> |
Back, Navigation cluster, and Release 4723_76b7c6-b8> |
|
6 4723_493302-aa> |
Hold, Transfer, and Conference 4723_7dedcd-51> |
|
7 4723_3014a7-1c> |
Headset, Speakerphone, and Mute 4723_6896d8-f8> |
|
8 4723_a734db-c3> |
Voicemail, Applications, and Directory 4723_305001-c9> |
|
9 4723_00f83f-96> |
Volume 4723_91e21d-db> |
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
Questions & Answers
-
Which call platforms does CP-8851NR-K9 register to?
-
What PoE class does CP-8851NR-K9 need, and what powers two Key Expansion Modules?
-
Which spare parts can I order for CP-8851NR-K9?
-
Which Cisco Unified CME release supports CP-8851NR-K9?
-
Which IP Phone 8800 firmware releases cover CP-8851NR-K9?
-
How much current does the side USB port on CP-8851NR-K9 supply?
Warranty
Layer23-Switch.com offers genuine, high-quality ICT products at competitive wholesale prices—ensuring exceptional value without compromising quality.
All items are brand new, original, and factory-sealed.
Upon request, each unit can be fully tested and verified by a Cisco CCIE-certified engineer to ensure perfect working condition before shipment.
Our Cisco CCIE-certified experts provide free professional support via phone, email, online chat, or remote login—helping you deploy and troubleshoot with confidence.
If you are not satisfied with your purchase, you may request an exchange or full refund. Our customer service team will guide you through the return process quickly and smoothly. Visit Return Policy page for more information.
We support multiple secure payment and logistics options, backed by industry-leading verification:












Visit How to Pay page for more information
Extended, Worry-Free Warranty Coverage Factory New Sealed Enterprise Hardware:
· 3 Years Factory New Sealed
Visit Warranty Policy page for more information
Verify, plan, and comparewith confidence
Use practical tools to check device details, review lifecyclemilestones, and compare hardware before you buy.

Layer23 shipped ahead of the quoted lead time. Pleasant surprise.
Asked about lead times. They were upfront and set accurate expectations.
Tried several resellers before settling on Layer23. Best combination of price and reliability.
Technically speaking, the lack of Bluetooth/Wi-Fi is a feature here. Authentication verified.
NR (No Radio) model is required for our SCIF. Glad you stock these specific SKUs.