Cisco IP Phone 7811-K9 (CP-7811-K9)

The Cisco IP Phone 7811-K9 is a cost-effective, single-line VoIP phone designed for users who need reliable, straightforward voice communication. Featuring a 3.28-inch monochrome backlit display, wideband audio, and full-duplex speakerphone, it delivers clear sound quality. Its support for Power over Ethernet (PoE) simplifies installation, making it a practical choice for administrative staff, lobbies, and basic office environments.

Product Features

Single-Line Support

Handles one active call at a time, ideal for users with simple telephony requirements.

Monochrome Display

3.28-inch grayscale backlit LCD (384 x 106 pixels) provides clear visibility under various lighting conditions.

Wideband Audio Quality

Offers high-definition audio through handset and speakerphone for natural and clear voice communication.

Full-Duplex Speakerphone

Enables hands-free conversations with minimal distortion, enhancing collaboration.

Power over Ethernet (PoE)

Supports IEEE 802.3af PoE for simplified installation by combining power and data over a single Ethernet cable.

Fixed Feature Keys

Includes dedicated keys for hold, transfer, redial, volume control, and voicemail for easy access.

Energy-Efficient Design

Complies with ENERGY STAR and Cisco EnergyWise standards for reduced energy consumption.

Wall-Mountable

Provides flexible deployment options, including wall mounting to optimize workspace.

Product Specifications

• Model: CP-7811-K9

• Display: 3.28-inch monochrome LCD (384 x 106 pixels)

• Lines Supported: 1

• Ethernet Ports: 2 x 10/100BASE-T

• Audio Codecs: G.711a/μ, G.722, G.729a, iLBC

• Speakerphone: Full-duplex wideband audio

• Power: IEEE 802.3af PoE (Class 1)

• Headset Interface: RJ-9 port

• Programmable Keys: 0

• Wall Mountable: Yes

• Dimensions: 206 x 164 x 40 mm

• Weight: Approximately 0.58 kg

• Compliance: ENERGY STAR certified, Cisco EnergyWise

• Security: 802.1X authentication, TLS, SRTP

• Compatibility: Cisco Unified Communications Manager 8.5.1 or later, Cisco Business Edition 6000

• Warranty: Limited manufacturer warranty

The Cisco IP Phone 7811-K9 provides a reliable, easy-to-use telephony solution with energy-efficient features, making it well-suited for business settings where basic phone functionality is required.