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

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

SKU: CP-7821-K9
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🗹 Supports Webex Calling
🗹 3.5" Graphical Display
🗹 396 x 162 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

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Overview

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


The Cisco 7821 IP Phone (CP-7821-K9) is a flexible and cost-effective VoIP solution for small to medium-sized organizations and knowledge workers. The Cisco 7821 IP Phone combines powerful functionality with a user-friendly interface, making it appropriate for companies with occasional to moderate call volume. It includes a 3.5-inch high-resolution greyscale display with white illumination, two programmable line keys, and a full-duplex speakerphone for crisp hands-free communication. The 7821 provides enhanced speech quality and seamless collaboration capabilities by supporting wideband audio and integrating with Cisco Unified Communications Manager.


Key Features of Cisco 7821 IP Phone


• 3.5-inch 396x162 pixel greyscale display with white backlighting

• Two programmable line keys for flexible call management

• Full-duplex wideband speakerphone for clear hands-free conversations

• Dual 10/100 Ethernet ports with PC pass-through for efficient connectivity

• Power over Ethernet (PoE) support (Class 1) for simplified installation

• Advanced audio codecs including G.722, G.729ab, G.711, and iLBC

• SIP and SRTP protocol support for secure VoIP communication

• Integrated Ethernet switch for network optimization

• Compatibility with Cisco Unified Communications Manager 8.5.1 or later

• Support for Cisco Hosted Collaboration Solution

• LDAP directory integration for easy contact management

• Quality of Service features with 802.1Q/p support

• Built-in security features including 802.1X authentication and file encryption

• Adjustable stand for comfortable viewing angles

• Optional wall-mount kit for versatile deployment

Specifications

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

ManufacturerCisco
Manufacturer Part NumberCP-7821-K9
Product NameCisco 7821 IP Phone
Product TypeVoIP 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

User Guides

Frequently Asked Questions

Cisco 7821 IP Phone (CP-7821-K9)
Frequently Asked Questions (FAQ's)



What features does the Cisco 7821 IP Phone offer?
  • The Cisco 7821 IP Phone provides high-quality voice communications, a backlit grayscale display, dual lines, speakerphone, and support for advanced VoIP features.
  • Is the Cisco 7821 IP Phone compatible with Power over Ethernet (PoE)?
  • Yes, the Cisco 7821 IP Phone supports PoE, which allows it to be powered through a compatible network switch.
  • Can I use the Cisco 7821 IP Phone for conference calls?
  • Yes, the Cisco 7821 IP Phone has a conference call feature that allows you to add multiple parties to a call.
  • Does the Cisco 7821 IP Phone support HD audio?
  • Yes, the Cisco 7821 IP Phone is equipped with HD audio for clearer and more natural voice quality.
  • What display type does the Cisco 7821 IP Phone have?
  • The Cisco 7821 IP Phone features a 3.5-inch monochrome, backlit display for improved readability.
  • How many lines does the Cisco 7821 IP Phone support?
  • The Cisco 7821 IP Phone supports two lines, enabling users to handle multiple calls simultaneously.
  • What kind of network connectivity does the Cisco 7821 IP Phone use?
  • The Cisco 7821 IP Phone uses an Ethernet connection and has dual 10/100 Ethernet ports for network connectivity.
  • Does the Cisco 7821 IP Phone support voicemail?
  • Yes, the Cisco 7821 IP Phone includes voicemail capabilities when configured with a compatible phone system.
  • Can I adjust the Cisco 7821 IP Phone’s ringer and volume?
  • Yes, users can adjust the volume for the ringer, handset, speakerphone, and headset on the Cisco 7821 IP Phone.
  • Is the Cisco 7821 IP Phone suitable for a small business?
  • Yes, the Cisco 7821 IP Phone is designed for small to medium-sized businesses, offering essential IP telephony features.
  • Does the Cisco 7821 IP Phone have a headset port?
  • Yes, the Cisco 7821 IP Phone includes a dedicated RJ-9 headset port for hands-free calling.
  • What are the Cisco 7821 IP Phone’s dimensions?
  • The Cisco 7821 IP Phone measures approximately 8.5 inches by 8 inches by 1.5 inches.
  • Can I mount the Cisco 7821 IP Phone on a wall?
  • Yes, the Cisco 7821 IP Phone can be wall-mounted with a compatible wall mount kit.
  • What kind of call transfer options does the Cisco 7821 IP Phone offer?
  • The Cisco 7821 IP Phone allows both blind and attended transfers, providing flexibility in call handling.
  • How does the Cisco 7821 IP Phone handle missed calls?
  • The Cisco 7821 IP Phone keeps a record of missed calls, which can be accessed through the call history menu.
  • Does the Cisco 7821 IP Phone support Do Not Disturb (DND)?
  • Yes, the Cisco 7821 IP Phone has a Do Not Disturb feature to silence incoming calls.
  • Can the Cisco 7821 IP Phone be managed remotely?
  • Yes, the Cisco 7821 IP Phone can be remotely managed and configured via a compatible network management system.
  • Is the Cisco 7821 IP Phone compatible with Cisco Unified Communications Manager (CUCM)?
  • Yes, the Cisco 7821 IP Phone is fully compatible with CUCM for easy integration into Cisco phone networks.
  • What are the power options for the Cisco 7821 IP Phone?
  • The Cisco 7821 IP Phone can be powered through PoE or an optional external power adapter.
  • Does the Cisco 7821 IP Phone support XML-based applications?
  • Yes, the Cisco 7821 IP Phone supports XML-based applications, allowing for additional functionality and customization.
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