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

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

SKU: CP-7811-K9
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Supports Webex Calling
3.28" Graphical Display
384 x 106 Pixel Resolution
Supports Wideband Audio
Full-Duplex Speakerphone
2-Port Cisco Ethernet Switch
Gigabit BASE-T Ethernet Network
RJ-9 Headset Port
Wall Mount Option
Individually boxed with handset, ethernet cable and curly cord

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Overview

Overview of Cisco IP Phone 7811 (CP-7811-K9) | Recertified

The Cisco IP Phone 7811 (CP-7811-K9) is a cost-effective, user-friendly VoIP phone made for light to moderate communications in small and medium-sized enterprises. It provides dependable, business-grade voice communications on Cisco on-premises, hosted and Webex Calling platforms by combining cutting-edge IP telephony functionality with crystal-clear call quality via wideband audio (with an optional wideband handset). This one-line, graphical grayscale display phone has a built-in full-duplex speakerphone for effective hands-free calling and supports Power over Ethernet (PoE). Its tiny, ergonomic design makes it ideal for spaces where cost-effectiveness and simplicity are crucial, including cafeterias, lobbies or small office desks. The CP-7811-K9 lowers installation and cabling expenses while simplifying setup with its integrated Ethernet switch and customizable deployment options.


Key Features of Cisco IP Phone 7811


3.28-Inch Graphical Grayscale Display with clear 384 x 106 pixel resolution screen provides easy navigation and call management.

One Programmable Line Key supports a single line ideal for occasional to light communications with intuitive access.

Full Duplex Speakerphone enables clear, hands-free conversations with narrowband audio (wideband audio optional with enhanced handset).

Power over Ethernet (PoE) Class 1 Support simplifies installation and reduces power cabling by providing network power delivery.

Integrated 10/100 Ethernet Switch with Dual Ethernet ports allow connection of a PC alongside the phone, minimizing cabling complexity.

Wideband Audio Capability with enhanced voice clarity with optional wideband handset for richer audio experience.

Flexible Deployment Compatibility that supports Cisco Unified Communications Manager, hosted call control, Cisco Webex Calling and third-party SIP platforms.

Robust Security Features with TLS and SRTP encryption, 802.1X authentication, secure boot and encrypted configuration ensure secure voice communications.

Ergonomic Design with compact size and optional wall mount compatible, suitable for small or shared workspaces.

Energy-Efficient Operation with Cisco EnergyWise technology helps reduce power consumption and operational costs.


Benefits of Cisco IP Phone 7811


🗹 Perfect for light use environments, minimizing communication expenses without sacrificing quality.

🗹 PoE support and plug-and-play setup simplify installation and reduce IT overhead.

🗹 Wideband audio option and full-duplex speakerphone boost call clarity and user experience.

🗹 Advanced encryption and authentication protocols protect sensitive conversations and data.

🗹 Compact form factor fits small desks, lobbies or shared work areas with an optional wall-mount choice.

🗹 Integrated Ethernet switch reduces cables and network ports needed in your office setup.

🗹 Seamlessly integrates with Cisco Webex Calling and on-premises collaboration platforms.

Specifications

Specifications for Cisco IP Phone 7811 (CP-7811-K9) | Recertified

ManufacturerCisco
Manufacturer Part NumberCP-7811-K9
Product NameCisco IP Phone 7811
Product TypeVoIP phone
Compatible PlatformsCisco Business Edition 6000
Body MaterialPC/ABS
Call ServicesVoice Mail, Caller ID, Call Waiting, Call Forwarding, Call Transfer, Call Hold, Message Waiting Capability
Dialer TypeKeypad
Dialer LocationBase
Conference Call CapabilityYes
SpeakerphoneYes (digital duplex)
Menu OperationYes
IndicatorsVoice message waiting indicator, speakerphone indicator
Firmware UpgradableYes
Additional FunctionsCall timer
Additional FeaturesMusic on hold
Main FeaturesMultiple VoIP protocol support, integrated Ethernet switch
VoIPYes
VoIP ProtocolsSIP, SRTP
Voice CodecsG.722, G.729a, G.711u, G.711a, iLBC
Quality of ServiceIEEE 802.1Q (VLAN), IEEE 802.1p
IP Address AssignmentDHCP, static
Security128-bit AES, 256-bit AES, IEEE 802.1X, TLS
Power Over Ethernet (PoE) SupportYes
Network ProtocolsCisco Discovery Protocol (CDP), SRTP
Network Ports Qty2 x Ethernet 10Base-T/100Base-TX
Display TypeLCD display - monochrome
Display LocationBase
Diagonal Size3.28"
Display Resolution384 x 106 pixels


User Guides

Frequently Asked Questions

Cisco IP Phone 7811 (CP-7811-K9)
Frequently Asked Questions (FAQ's)



How many lines does the Cisco 7811 support?
  • It supports one SIP line, making it ideal for standard voice use.
  • Does the 7811 have a color screen?
  • No, it features a 3.28-inch monochrome display.
  • Is the Cisco 7811 compatible with PoE?
  • Yes, it supports Power over Ethernet for simplified power and connectivity.
  • Can this phone be used with third-party VoIP providers?
  • It's optimized for use with Cisco Unified Communications Manager and may have limited support with non-Cisco systems.
  • Does it include a power adapter?
  • No, power adapter is sold separately if PoE is not used.
  • What audio quality features does it offer?
  • It supports wideband audio (HD Voice) for enhanced clarity.
  • Is the Cisco 7811 wall-mountable?
  • Yes, with an optional wall-mount kit.
  • Does it support speakerphone functionality?
  • Yes, it includes a full-duplex speakerphone.
  • Can you use a headset with the 7811?
  • Yes, it includes a dedicated RJ-9 headset port.
  • What protocols does it support?
  • Primarily SIP, used within Cisco’s CUCM ecosystem.
  • Does it support VPN?
  • No native VPN support; typically depends on network configuration.
  • Is it compatible with Cisco Webex Calling?
  • Yes, with the proper provisioning.
  • Can I transfer calls and place them on hold?
  • Yes, it supports standard call features including transfer, hold and conference.
  • Is it suitable for call centers?
  • It's best for lobby and single-line use; call centers may need multi-line models.
  • Can it be managed remotely?
  • Yes, via Cisco Unified Communications Manager.
  • How does it differ from the 7821 or 7841 models?
  • 7821/7841 offer multi-line support and additional features.
  • What security features are built in?
  • Secure boot, signaling/media encryption and device authentication.
  • Does it have customizable ringtones?
  • Yes, it offers a selection of built-in ringtone options.
  • How energy efficient is it?
  • Supports Cisco EnergyWise for reduced power consumption during inactivity.
  • Does the Cisco 7811 support call waiting?
  • Yes, it supports call waiting functionality when configured via Cisco Unified Communications Manager.
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