CP-8811-K9 – Five-Line IP Phone – Gigabit Ethernet – Enhanced UCL
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CP-8811-K9 Description
CP-8811-K9 is a Cisco IP Phone 8811 desk phone in the Cisco IP Phone 8800 Series, ordered for Cisco voice deployments that need five programmable line keys, a grayscale 5-inch display, and Gigabit Ethernet pass-through at the user desk.
For buyers comparing 8800 Series models, CP-8811-K9 keeps the same five-key voice endpoint role as CP-8841-K9, but the visible display requirement is different: the 8811 uses a grayscale display, while the 8841 uses a color display. CP-8851-K9 moves further into mobile-device and expansion-module use cases with USB, Bluetooth, and Cisco 8800 Key Expansion Module support documented by Cisco.
For order review, verify CP-8811-K9= as the Cisco charcoal ordering PID, Enhanced User Connect License coverage for Cisco Unified Communications Manager, PoE Class 2 or Cisco Power Cube 4 power, the call-control release, and whether the site requires a wall-mount kit, regional power cord, or the separate white CP-8811-W-K9= model.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Product ID |
CP-8811-K9 |
|
Cisco ordering ID |
CP-8811-K9= |
|
Product family |
Cisco IP Phone 8800 Series |
|
Product type |
Cisco IP Phone 8811 desk phone |
|
Programmable line and feature keys |
5 |
|
Display |
5 in. 800 x 480 grayscale widescreen display |
|
Integrated switch |
10/100/1000BASE-T with LAN and co-located PC connectivity |
|
Headset ports |
RJ-9 analog headset port and auxiliary EHS port |
|
PoE class |
IEEE Power over Ethernet Class 2 |
|
Power input rating |
0.917A, 48V DC |
|
CUCM license |
Enhanced User Connect License |
|
CUCM support |
Cisco Unified Communications Manager 12.5 and later |
|
Dimensions and weight |
9.02 x 10.13 x 1.57 in., 2.58 lb with handset |
Application Scenarios
Use CP-8811-K9 for office users who need a Cisco 8800 Series voice endpoint with five programmable line keys and Unified CM registration covered by Enhanced UCL.
Choose this SKU when the phone sits between the access switch and a user PC, and the desktop cabling plan needs the Cisco-documented 10/100/1000BASE-T integrated switch.
Select CP-8811-K9 when the bill of materials calls for the 8811 charcoal model and does not require the color-display 8841 or the USB, Bluetooth, and KEM expansion features documented for the 8851.
Product Comparison
|
Parameter |
CP-8811-K9 | ||
|---|---|---|---|
|
Product family |
Cisco IP Phone 8800 Series |
Cisco IP Phone 8800 Series |
Cisco IP Phone 8800 Series |
|
Cisco ordering ID |
CP-8811-K9= |
CP-8841-K9= |
CP-8851-K9= |
|
Cisco model description |
Cisco IP Phone 8811, Charcoal |
Cisco IP Phone 8841, Charcoal |
Cisco IP Phone 8851, Charcoal |
|
Programmable line and feature keys |
5 |
5 |
5 |
|
Display |
5 in. 800 x 480 grayscale |
5 in. 800 x 480 color |
5 in. 800 x 480 color |
|
Integrated switch |
10/100/1000BASE-T |
10/100/1000BASE-T |
10/100/1000BASE-T |
|
Headset and expansion features |
RJ-9 analog headset and auxiliary EHS port |
RJ-9 analog headset and auxiliary EHS port |
USB, Bluetooth, and up to two Cisco 8800 Key Expansion Modules |
|
PoE class |
IEEE Power over Ethernet Class 2 |
IEEE Power over Ethernet Class 2 |
IEEE Power over Ethernet Class 3 before hardware version V08, Class 4 for V08 and above |
|
CUCM license |
Enhanced User Connect License |
Enhanced User Connect License |
Enhanced User Connect License |
|
Approximate weight with handset |
2.58 lb |
2.58 lb |
2.62 lb |
- In a CP-8811-K9 vs CP-8841-K9 comparison, the main table difference is display type: CP-8811-K9 is the grayscale 8811 model, while CP-8841-K9 is the color-display 8841 model.
- The CP-8811-K9 vs CP-8851-K9 difference is the expansion and mobile-device feature set. CP-8851-K9 adds Cisco-documented USB, Bluetooth, and up to two 8800 Key Expansion Modules.
- For buyers deciding which model to choose, the CP-8811-K9 comparison should start with display requirement, then check whether USB, Bluetooth, or key-expansion support belongs in the endpoint standard.
Selection Guide
1. Choose CP-8811-K9 for a grayscale 8800 Series desk phone
Select CP-8811-K9 when the standard endpoint is the Cisco IP Phone 8811 with five programmable line keys, a 5-inch grayscale display, and Gigabit Ethernet for a co-located PC.
2. Move to CP-8841-K9 when color display is required
Use CP-8841-K9 instead when the buyer wants the same 8800 Series desk-phone class but the endpoint standard requires a color 5-inch display.
3. Move to CP-8851-K9 when expansion or mobile features are part of the BOM
Review CP-8851-K9 when the user profile needs Cisco Intelligent Proximity, USB, Bluetooth headset options, or Cisco 8800 Key Expansion Module support.
4. Confirm licensing and power before release to quote
Match the order to Enhanced User Connect License coverage, Cisco Unified Communications Manager 12.5 or later, PoE Class 2 switching, or Cisco Power Cube 4 with the correct regional cord.
Ordering Checklist
|
Check Item |
Confirmation Needed |
Ordering Risk |
|---|---|---|
|
Cisco PID |
CP-8811-K9= for Cisco IP Phone 8811, Charcoal |
Prevents the order from drifting to white CP-8811-W-K9= or another 8800 Series phone |
|
User endpoint role |
Five programmable line and feature keys |
Keeps the phone matched to the user’s line and feature-button requirement |
|
Display standard |
5-inch grayscale display for the 8811 |
Avoids ordering CP-8811-K9 where the deployment standard requires the color-display 8841 or 8851 |
|
Desk Ethernet path |
10/100/1000BASE-T integrated switch for the phone and co-located PC |
Confirms the PC-behind-phone cabling plan before deployment |
|
Voice platform |
Cisco Unified Communications Manager 12.5+, Unified CME 10.0+, BE 6000, or HCS 8.6.2+ support |
Keeps the endpoint tied to Cisco-documented call-control support |
|
License tier |
Enhanced User Connect License for CUCM connection |
Prevents the phone from being paired with the wrong UCL entitlement |
|
Power accessories |
IEEE PoE Class 2 or Cisco Power Cube 4 with a country cord |
Separates switch-powered desks from local-power deployments |
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
Packaging weight and dimensions included:| Weight | 1.52 kg |
|---|---|
| Dimensions | 28 × 25 × 8 cm |
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Brand | Cisco | Product ID | CP-8811-K9 |
| Cisco ordering ID | CP-8811-K9= | Product family | Cisco IP Phone 8800 Series |
| Product type | Cisco IP Phone 8811 desk phone | Color | Charcoal |
| Programmable line and feature keys | 5 | Display | 5 in. 800 x 480 grayscale widescreen display |
| Ethernet switch | 10/100/1000BASE-T with two-port Cisco Ethernet switch | PC connectivity | Single LAN connection for phone and co-located PC |
| PoE class | IEEE Power over Ethernet Class 2 | PoE standards | Compatible with IEEE 802.3af and 802.3at switch blades |
| Power input rating | 0.917A, 48V DC | Local power option | Cisco IP Phone Power Cube 4 for non-PoE deployments |
| 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 and discovery | Cisco Discovery Protocol, 802.1Q/p, and LLDP-MED |
| Handset | Wideband-capable RJ-9 handset | Analog headset | Wideband-capable RJ-9 audio port |
| AUX port | Electronic hookswitch control with a third-party headset | Speakerphone | Full-duplex speakerphone |
| 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 | 2.58 lb with handset |
| Operating temperature | 32 to 104 degrees F (0 to 40 degrees C) | Operating humidity | 10% to 90%, noncondensing |
| Phone casing composition | Polycarbonate ABS textured plastic | Security slot | Kensington Security Slot compatible |
Get More Information
Need pricing, stock, or shipping details for the CP-8811-K9 ? Layer23-Switch can help you check current availability, lead time, and delivery options for this. Send us the part number, quantity, and destination country via live chat or email sales@layer23-switch.com for a fast quotation.
Quality Certifications
Customer Reviews
Questions & Answers
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What is CP-8811-K9?
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How is CP-8811-K9 different from CP-8861-K9?
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Does CP-8811-K9 have Bluetooth?
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What user profile fits CP-8811-K9?
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Can CP-8811-K9 work with Cisco Unified Communications Manager?
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Why does CP-8811-K9 fail after a phone swap?
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When is CP-8811-K9 the wrong phone?
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Which CP-8811-K9 purchase details matter most?
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