• Cisco 8961 IP phone with black-gray scheme, 5in greyscale LCD, 5 lines
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Cisco

Cisco CP-8811-K9 | IP Phone 8811, 5-Line Wideband VoIP, Grayscale Display

CP-8811-K9

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Description

The Cisco CP-8811-K9 is a cost-effective enterprise IP phone designed for knowledge workers and remote employees in midsize to large organizations. It features a 5-inch grayscale display, wideband audio for crystal-clear voice communication, and support for up to 5 lines. The integrated 2-port Gigabit Ethernet switch enables co-located PC connectivity, while PoE Class 2 support simplifies deployment without dedicated power supplies.

Features

Wideband audio (G.722) for high-definition voice clarity through handset, speakerphone, or headset
- Full-duplex speakerphone with acoustic echo cancellation for hands-free communication
- 5-inch backlit grayscale display (800 x 480 pixels) for easy call status and menu navigation
- 5 programmable line keys and 4 soft keys for flexible call handling and feature access
- Fixed function keys for one-touch access to voicemail, directory, hold, transfer, and conference
- Dual Gigabit Ethernet ports with integrated switch for network and PC connectivity
- IEEE 802.3af/at Power over Ethernet (PoE) Class 2 support for simplified cabling
- Encrypted voice communications (SRTP, HTTPS) for enhanced security
- Support for 802.1x authentication and VLAN assignment for network segmentation
- RJ-9 headset port and auxiliary EHS port for wired and wireless headset compatibility
- Hearing aid-compatible (HAC) handset meeting ADA requirements
- Cisco EnergyWise support for intelligent power management
- Localized language support including right-to-left on-screen text
- Wall-mountable with optional mounting kit for flexible deployment
- XML application support for text-based productivity tools

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

Protocol: SIP with support for 5 DN lines and 5 programmable line keys
- Display: 5-inch widescreen backlit grayscale, 800 x 480 pixel resolution
- Network: 2-port 10/100/1000 Gigabit Ethernet switch for phone and PC connectivity
- Power: IEEE 802.3af/at PoE Class 2 compliant (power supply sold separately)
- Audio: Wideband audio support with full-duplex speakerphone
- Codecs: G.711a/μ-law, G.722, G.729a, iLBC, iSAC
- Ports: RJ-45 Ethernet (x2), RJ-9 headset, auxiliary port for electronic hookswitch (EHS)
- Interface: 5 programmable line keys, 4 context-sensitive soft keys, fixed function keys for messaging, directory, transfer, hold, conference
- Mounting: Dual-position foot stand included, wall-mountable with optional kit
- Compatibility: Cisco Unified Communications Manager, Cisco UCM Express, Cisco BE 6000

FAQs

Q: How many simultaneous calls can the CP-8811-K9 handle?
A: The CP-8811-K9 supports up to 5 directory number (DN) lines with both single and multiple call-per-line appearance capability, allowing users to manage several calls simultaneously across the 5 programmable line keys.

Q: Does this phone require a separate power supply?
A: The CP-8811-K9 supports PoE Class 2 (IEEE 802.3af/at) and can be powered directly through the Ethernet connection from a PoE-capable switch. Alternatively, an optional Cisco power cube and cord can be purchased separately for AC power.

Q: Can I connect a computer to this phone?
A: Yes, the CP-8811-K9 includes an integrated 2-port Gigabit Ethernet switch, enabling a single network cable to power both the phone and a co-located PC. The phone and PC can be assigned to separate VLANs for enhanced security.

Q: What headset options are compatible with the CP-8811-K9?
A: The phone features a standard RJ-9 headset port and an auxiliary port supporting electronic hookswitch (EHS) control for compatible third-party wireless and wired headsets. It is also hearing aid-compatible (HAC).

Q: Is this phone suitable for open-SIP or third-party call control platforms?
A: The CP-8811-K9 SKU is designed for Cisco Unified Communications Manager environments and uses enterprise firmware. For third-party SIP platforms, the CP-8811-3PCC-K9 model with multiplatform firmware is recommended.

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