Cisco 8811 IP Phone (CP-8811-K9)
Cisco 8811 IP Phone (CP-8811-K9)
Cisco

Cisco 8811 IP Phone (CP-8811-K9) | Like New

SKU: CP-8811-K9-LN
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The Cisco 8811 IP Phone (CP-8811-K9) is a top-tier SIP desk phone designed for safe, excellent voice communication. It supports effective everyday calling in business and SMB settings with a 5-inch widescreen display, HD wideband audio and five configurable line keys. It is intended for consumers who require a straightforward, recognizable interface for dependable, expert VoIP conversation. Knowledge workers, reception areas and busy office teams that manage several calls over the day will find it ideal since it supports up to five line appearances. Wideband audio on the phone, speakerphone and headset enhances voice clarity and a 5-inch backlit grayscale display makes it easier for users to browse conversations, directories and messaging. Additionally, the phone may be deployed flexibly in Webex Calling, Cisco on-premises, hosted and third-party call control settings.

Quick specs

Product Type
IP Phone
Color
Black
Protocol Support
SIP
Line Appearances
Up to 5 line appearances
Display
5-inch widescreen backlit grayscale display
Display Resolution
800 x 480 pixels

Key Features

  • 5-inch widescreen VGA display with 800 x 480 resolution.

  • Up to 5 line appearances for multi-call handling.

  • 5 programmable line and feature keys plus 4 soft keys.

  • Wideband audio with G.722 support for clear voice quality.

  • Full-duplex speakerphone for hands-free communication.

  • Dual Gigabit Ethernet ports for PC passthrough and network connection.

  • RJ-9 headset port and auxiliary port for headset and accessory support.

  • PoE support for simplified installation and cleaner cabling.

  • Wall-mountable design for flexible office placement.

  • Secure business calling with Cisco enterprise deployment support.

Benefits

  • Improves call efficiency with quick access to lines, conferencing, transfer and messaging controls.
  • Enhances productivity through programmable keys and a clear, easy-to-use interface.
  • Reduces desk clutter with dual Ethernet ports and PoE-ready deployment.
  • Delivers more natural conversations due to HD wideband audio and echo cancellation.
  • Fits flexible workspaces with wall-mount and desk installation options.
  • Supports enterprise consistency by working across Cisco and third-party calling environments.
Manufacturer Cisco
Manufacturer Part Number CP-8811-K9
Product Name Cisco 8811 IP Phone
Product Type IP Phone
Color Black
Protocol Support SIP
Line Appearances Up to 5 line appearances
Display 5-inch widescreen backlit grayscale display
Display Resolution 800 x 480 pixels
Display Type WideVGA, grayscale
Programmable Keys 5 programmable line/feature keys
Soft Keys 4 context-sensitive soft keys
Fixed Feature Keys Keypad, media, conferencing, transfer, hold, apps, directories, voice messaging
Audio Wideband audio
Handset Audio Codec G.722
Speakerphone Full-duplex speakerphone
Headset Port RJ-9 headset port
Auxiliary Port Yes
Integrated Switch 10/100/1000 Gigabit Ethernet switch
Network Ports 2 x Ethernet ports
QoS 802.1Q VLAN support, 802.1p/Q
Power PoE support, 802.3af Class 2
Power Consumption Less than 6.49W
Wall Mountable Yes
Security / Power Savings Power Save Plus-ready (Green)
Expansion Modules Not supported
Compatibility Cisco Unified Communications Manager, Cisco Unified CME, Cisco Business Edition, Cisco HCS
Required License User Connect License for Cisco Unified Communications Manager environments
Dimensions 9.02 x 10.13 x 1.57 in.
Weight 2.58 lb
Use Case Knowledge workers, teleworkers, midsize to large enterprise voice communications

Frequently Asked Questions

Cisco 8811 IP Phone (CP-8811-K9) | Like New

Which phone systems support the Cisco 8811 IP Phone?
The Cisco 8811 is designed for Cisco Unified Communications platforms and supports compatible SIP-based business telephony environments.
Does the Cisco 8811 support Power over Ethernet?
Yes. The phone supports IEEE 802.3af Power over Ethernet (PoE), allowing power and network connectivity through a single Ethernet cable.
Does the phone require a separate power adapter?
Not necessarily. If connected to a PoE-enabled network switch, an external power adapter is not required. A compatible Cisco power adapter can be used where PoE is unavailable.
Does the Cisco 8811 have a color display?
No. The Cisco 8811 features a 5-inch high-resolution grayscale display, providing excellent readability and low power consumption.
How many line keys are available?
The phone includes five programmable line keys that can be configured for extensions, shared lines, speed dials and feature access.
Does the Cisco 8811 provide HD voice quality?
Yes. Cisco wideband audio technology delivers high-definition voice quality when used with supported networks and endpoints.
Can I use a headset with the Cisco 8811?
Yes. The phone supports compatible wired headsets and Electronic Hook Switch (EHS) functionality with supported wireless headset systems.
Does the Cisco 8811 include Bluetooth?
No. Unlike some higher-end Cisco 8800 Series models, the Cisco 8811 does not include integrated Bluetooth.
Can a computer share the network connection?
Yes. Dual Gigabit Ethernet ports allow a desktop computer to connect through the phone using a single network drop.
Does the phone include a USB port?
Yes. The Cisco 8811 includes a USB port that supports select accessories and administrative functions.
Is the Cisco 8811 suitable for executive offices?
Yes. Its excellent audio quality, professional design, and enterprise features make it suitable for executives, managers and knowledge workers.
Can the phone be wall mounted?
Yes. The Cisco 8811 supports wall mounting using an optional Cisco wall-mount kit.
Does the phone support conference calling?
Yes. The integrated full-duplex speakerphone supports high-quality conference and hands-free conversations.
Is the Cisco 8811 secure for business use?
Yes. Cisco incorporates enterprise-grade security technologies, including authentication and encrypted voice communications, to help protect business conversations.
Can IT administrators manage the phone remotely?
Yes. The Cisco 8811 supports centralized provisioning, firmware updates, configuration and remote management within Cisco Unified Communications environments.
Is the phone compatible with SIP?
Yes. The Cisco 8811 supports SIP operation in supported deployments and compatible communications platforms.
Is this phone appropriate for large enterprise deployments?
Yes. The Cisco 8811 is widely deployed in enterprise, government, education, healthcare and commercial organizations due to its scalability and centralized management capabilities.
Does the Cisco 8811 support Gigabit networking?
Yes. Dual Gigabit Ethernet ports provide high-speed network connectivity for both the phone and a connected computer.
Is the CP-8811-K9 a genuine Cisco model?
Yes. CP-8811-K9 is the official Cisco model number for the Cisco 8811 IP Phone.
Why choose the Cisco 8811 IP Phone (CP-8811-K9)?
The Cisco 8811 combines HD wideband audio, a 5-inch grayscale display, dual Gigabit Ethernet ports, PoE support, enterprise-grade security, programmable line keys, centralized management and Cisco Unified Communications compatibility, making it an excellent business IP phone for organizations seeking dependable, scalable and secure voice communications.
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Cisco 8811 IP Phone (CP-8811-K9)

Cisco 8811 IP Phone (CP-8811-K9) | Like New

Cisco

$49.99