Cisco 9811 IP Desk Phone - Carbon Black New
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The Cisco 9811 IP Desk Phone delivers reliable, professional-grade VoIP communication for businesses of all sizes. Designed for efficiency and clarity, this carbon black desk phone combines essential calling features with Cisco's renowned quality and reliability.
Key Features and Benefits
- Multi-Platform Support: Supports up to 16 VoIP accounts across Webex Calling and Open SIP platforms, providing flexible deployment options
- Clear Visual Display: 2.6-inch grayscale LCD with 256x132 resolution for easy call management and navigation
- Dual Line Keys: Two programmable line keys for efficient call handling and multi-line management
- Full-Duplex Speakerphone: High-quality speakerphone enables hands-free conversations with natural sound clarity
- Power over Ethernet (PoE): IEEE 802.3i/802.3u compliant PoE support simplifies installation by eliminating the need for separate power cables
- Headset Ready: RJ-9 headset port allows for easy integration with your preferred headset for extended calling comfort
- Auxiliary Port: Console log output port for troubleshooting and system diagnostics
- Complete Package: Comes with handset, cord, network cable, and desk stand for immediate deployment
Professional Communication Made Simple
The Cisco 9811 IP Desk Phone is an ideal solution for businesses seeking dependable, cost-effective communication technology. Whether you're equipping a call center, outfitting office workstations, or setting up a home office, this phone delivers the essential features you need without unnecessary complexity. The intuitive interface and straightforward design ensure that employees can focus on their work rather than learning complicated phone systems. With support for multiple VoIP accounts, the 9811 is particularly well-suited for businesses using Webex Calling or Open SIP platforms, offering seamless integration into your existing communications infrastructure.
Technical Specifications
- Manufacturer: Cisco
- Model: 9811 IP Desk Phone - Carbon Black
- Part Number: DP-9811-K9
- Display: 2.6-inch Grayscale LCD, 256x132 resolution
- Line Keys: 2
- VoIP Accounts: 16 (Webex Calling and Open SIP platforms)
- PoE Support: Yes, IEEE 802.3i/802.3u
- Gigabit Ethernet: Not included
- Bluetooth: Not included
- Wi-Fi: Not included
- Speakerphone: Yes, full-duplex
- USB Ports: None
- Connectivity: 1x RJ-9 headset port, 1x Auxiliary port for console log output
- Optional Power Adapter: CP-PWR-ADPT-3-NA= (sold separately)
Optional Accessories
- DP-9800-HS= Wideband Handset
- DP-9800-WMK= Wallmount
- DP-9811-FS= Replacement footstand
Included
- Cisco 9811 VoIP Desk Phone - Carbon Black
- Handset/Cord
- Network cable
- Desk Stand
Why Buy from PC Liquidations
When you choose this Cisco 9811 IP Desk Phone, you're backed by over 250,000 happy customers who have trusted us with their technology needs. Our commitment to quality ensures that every product meets rigorous standards before reaching your desk, and our dedicated team is here to support you every step of the way.
With great prices on business-grade communication equipment and fast fulfillment to get your office up and running quickly, you can purchase with confidence. All products come with warranties and our satisfaction guarantee, so you can invest in your business communications without worry.

New Product
These products are brand new and have never been used. They arrive in the original manufacturer packaging in pristine, factory-fresh condition.
9811 IP Desk Phone Technical Specs
| Manufacturer | Cisco |
|---|---|
| Model | 9811 IP Desk Phone - Carbon Black |
| Part Number | DP-9811-K9 |
| LCD dims and Resolution | 2.6-inch Grayscale LCD, 256x132 resolution |
| Number of Line Keys | 2 |
| Number of VoIP Accounts | 16 for Webex Calling and Open SIP platforms |
| PoE support | Yes IEEE 802.3i/802.3u |
| Gigabit Ethernet | No |
| Built-in Bluetooth | No |
| Bluetooth version | - |
| Built-In Wi-Fi | No |
| Wi-Fi version | - |
| Speakerphone | Yes, full-duplex |
| OS | Cisco PhoneOS |
| USB ports and type(s) | none |
| Special Feature(s) | 1x RJ-9 port for headset connection 1x Auxiliary port for console log output |
| Power Adapter (optional) | CP-PWR-ADPT-3-NA= (sold separately) |
| Optional Accessories | DP-9800-HS= WideBand Handset DP-9800-WMK= Wallmount DP-9811-FS= replacement footstand |
| Included | Cisco 9811 VoIP Desk Phone - Carbon Black Handset/Cord Network cable Desk Stand |
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Wrong item? Changed your mind? Don't need it anymore? We've got you covered.
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- No restocking fees, ever
- Refund or store credit — your choice
- 30 days from invoice date
- Return in original condition, securely packed
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- Ships within 2 business days*
- Rush & Saturday delivery available — call us
- Free ground shipping available (continental US orders over $500)
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1-Year Warranty
- Covers defects & functional failures
- Normal business use, from date of purchase
- Batteries: 90 days (consumable)
- Excludes misuse, modification, mishandling
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