Cisco 7821 IP Phone (CP-7821-K9)
Cisco 7821 IP Phone (CP-7821-K9)
Cisco

Cisco 7821 IP Phone (CP-7821-K9) | Recertified

SKU: CP-7821-K9
Condition: Recertified

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$39.99
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The Cisco 7821 IP Phone (CP-7821-K9) is a reliable, cost-effective business desk phone for everyday voice communication in small to large enterprises. Wideband audio, a full-duplex speakerphone, two programmable line buttons and a 3.5-inch illuminated display make calling easy and effective. The Cisco 7821 is a useful option for businesses that want solid IP telephony without needless complication since it is designed for flexible deployment and works with Cisco on-premises, hosted, Webex Calling, and third-party call control settings.

Quick specs

Product Type
VoIP Phone
Dialer Type
Keypad
Dialer Location
Base
Conference Call Capability
Yes
Speakerphone
Yes (digital duplex)
Menu Operation
Yes

Key Features

  • 2 programmable line keys for handling calls and shared line appearances.

  • 3.5-inch backlit display with a clear pixel-based interface for easy navigation.

  • Wideband audio and full-duplex speakerphone for natural, high-quality conversations.

  • 2-port Ethernet switch for daisy-chaining a PC and reducing desktop cabling.

  • Multiplatform support for Cisco and approved third-party call control systems.

  • EHS headset support and RJ-9 headset connectivity for hands-free use.

  • Desk-mount or wall-mount installation options for flexible placement.

  • Fixed keys for voicemail, conference, directory and other core calling functions.

Benefits

  • Delivers clear, dependable calling for everyday business communication.
  • Reduces desk clutter by combining phone and PC connectivity through the built-in Ethernet switch.
  • Improves productivity with quick-access keys and simple call handling features.
  • Fits mixed telecom environments due to multiplatform firmware support.
  • Helps businesses control costs with a practical feature set and easy deployment.
  • Supports flexible office setups with wall-mount and desk-mount installation options.
Manufacturer Cisco
Manufacturer Part Number CP-7821-K9
Product Name Cisco 7821 IP Phone
Product Type VoIP Phone
Call Services Voice Mail, Caller ID, Call Waiting, Call Forwarding, Call Transfer, Call Hold, Message Waiting Capability
Dialer Type Keypad
Dialer Location Base
Conference Call Capability Yes
Speakerphone Yes (digital duplex)
Menu Operation Yes
Programmable Buttons Qty 2
Indicators Voice message waiting indicator, speakerphone indicator, headset
Firmware Upgradable Yes
Additional Functions Call timer
Additional Features Music on hold
Main Features Multiple VoIP protocol support, integrated Ethernet switch
VoIP Yes
VoIP Protocols SIP, SRTP
Voice Codecs G.722, G.729ab, G.711u, G.711a, iLBC
Lines Supported 2 lines
Quality of Service IEEE 802.1Q (VLAN), IEEE 802.1p
IP Address Assignment DHCP, static
Security IEEE 802.1X
Power Over Ethernet (PoE) Support Yes
Network Protocols Cisco Discovery Protocol (CDP), SRTP
Network Ports Qty 2 x Ethernet 10Base-T/100Base-TX
Compatible Software Cisco Unified Communications Manager 8.5.1 or later, Cisco Hosted Collaboration Solution
Network Features Lightweight Directory Access Protocol (LDAP)
Type LCD display - monochrome
Display Location Base
Diagonal Size 3.5"
Display Resolution 396 x 162 pixels
Backlit Yes
Display Languages Danish, Hebrew, Hungarian, Czech, Croatian, Slovenian, Thai, Slovak, Brazilian Portuguese, English, German, French, Italian, Norwegian, Portuguese, Polish, Finnish, Swedish, Russian, Spanish, Dutch, Greek, Turkish, Arabic, Bulgarian, Latvian, Lithuanian, Estonian, Serbian, Romanian, Catalan, Japanese, Chinese, Korean
Connections Headset jack
Placing / Mounting Wall-mountable, table-top
Compliant Standards CISPR 22 Class B, CISPR 24, EN 61000-3-2, EN 61000-3-3, EN55024, EN55022 Class B, ICES-003 Class B, AS/ACIF S004, FCC Part 68, EMC, CS-03, UL 60950-1 Second Edition, EN 60601-1-2, FCC CFR47 Part 15 B, GB 4943, AS/NZS 60950, CSA C22.2 No. 60950-1 Second Edition, EN 60950-1 Second Edition, IEC 60950-1 Second Edition, VCCI Class B
Width 8.1 in
Depth 1.1 in
Height 8.1 in
Weight 30.6 oz
Service & Support Limited warranty - replacement - 1 year

Frequently Asked Questions

Cisco 7821 IP Phone (CP-7821-K9) | Recertified

What is the Cisco 7821 IP Phone used for?
It is a business VoIP desk phone designed for enterprise communication and unified collaboration.
Does it support VoIP communication?
Yes, it supports SIP-based VoIP and unified communications platforms.
Does it include a display?
Yes, it features a high-contrast grayscale display for call management and navigation.
How is the audio quality?
It delivers wideband HD audio for clear and professional voice communication.
Is it suitable for business environments?
Yes, it is designed for offices, branch locations, administrative staff and shared workspaces.
Does it support multiple lines?
Yes, it supports multiple line appearances for business communication needs.
Does it include a speakerphone?
Yes, it includes full-duplex speakerphone functionality for hands-free communication.
Can headsets be connected?
Yes, it supports compatible business headsets.
Does it support conferencing features?
Yes, it includes conferencing and advanced call management capabilities.
Is it compatible with Cisco unified communications platforms?
Yes, it integrates with Cisco VoIP and collaboration environments.
Does it include Ethernet connectivity?
Yes, it features dual Ethernet ports for network connectivity.
Can IT teams manage it centrally?
Yes, Cisco management platforms support centralized provisioning and administration.
Can firmware be updated?
Yes, firmware updates are supported for enhanced functionality and security.
Is it energy efficient?
Yes, it is optimized for efficient power usage in enterprise deployments.
Can it support office collaboration environments?
Yes, it supports modern business communication and collaboration workflows.
Is it durable for long-term business use?
Yes, it is built for reliable continuous enterprise operation.
Does it support call management features?
Yes, it supports hold, transfer, conferencing, voicemail and directory functions.
Can it be deployed in shared workspaces?
Yes, it is suitable for common areas and shared office environments.
Is it easy to use?
Yes, its intuitive interface simplifies navigation and call handling.
Is it future-proof?
Yes, with Cisco VoIP compatibility, enterprise scalability and unified communications support, it supports long-term business communication needs.
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Cisco 7821 IP Phone (CP-7821-K9)

Cisco 7821 IP Phone (CP-7821-K9) | Recertified

Cisco

$39.99