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CP-7821-K9 – Cisco IP Phone – VoIP Phone
3/mo Solds
| Weight | 1.2 kg |
|---|---|
| Dimensions | 25 × 28 × 8 cm |
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CP-7821-K9 Description
The Cisco IP Phone 7821 (CP-7821-K9) delivers cost-effective, secure, and reliable VoIP communication for small to large businesses. As part of the Cisco 7800 Series, it supports two lines, making it ideal for environments where users need to manage multiple calls without excessive complexity.Equipped with a 3.5-inch backlit grayscale display and intuitive navigation keys, the 7821 offers a user-friendly interface for accessing corporate directories, call history, and advanced calling features such as conferencing, call forwarding, and voicemail.With dual 10/100 Ethernet ports, the phone allows both the endpoint and a connected PC to share the same network connection, reducing infrastructure costs. It supports wideband audio for crystal-clear conversations and PoE Class 1 for simplified deployment without additional power adapters. Compatible with Cisco Unified Communications Manager (12.5 and later) and Cisco Hosted Collaboration Solution, the CP-7821-K9 is built for long-term enterprise-grade performance.
Quick Specs
|
Parameter 4637_a58aca-ea> |
Specification 4637_e465a1-ac> |
|---|---|
|
Lines Supported 4637_1b19b4-9f> |
2 4637_55a006-5b> |
|
Display 4637_65f33c-e7> |
3.5-inch (396×162 pixel) grayscale, white backlight 4637_297890-18> |
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Ethernet Ports 4637_7ac402-00> |
2× 10/100BASE-T RJ-45 (LAN & PC) 4637_e4dfcd-65> |
|
Codec Support 4637_42cb32-c1> |
G.711 (A-law/μ-law), G.722, G.722.2, G.729ab, iLBC, OPUS 4637_dbf100-c2> |
|
Speakerphone 4637_658ae6-51> |
Full-duplex 4637_2ffb09-c3> |
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Headset Port 4637_ab0bc2-96> |
RJ-9 wideband-capable 4637_bc369a-7b> |
|
PoE 4637_bd0456-e6> |
IEEE 802.3af Class 1 (Max 3.84W) 4637_26d997-0d> |
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Power Supply (Optional) 4637_2b4337-f6> |
Cisco Power Adapter 3 (48V DC, 0.38A) 4637_84fa97-51> |
|
Dimensions (H×W×D) 4637_3f70db-2f> |
207 × 206 × 28 mm (excluding foot stand) 4637_dce8b8-54> |
|
Weight 4637_651ecc-85> |
867 g 4637_f9f569-89> |
|
Operating Temperature 4637_42d4a8-25> |
0°C to 40°C (32°F to 104°F) 4637_930a4b-99> |
Product Front
The Cisco IP Phone 7800 Series has distinct hardware types:
- Cisco IP Phone 7811 No buttons on either side of the screen
- Cisco IP Phone 7821 Two buttons on the left side of the screen
- Cisco IP Phone 7841 Two buttons on either side of the screen
- Cisco IP Phone 7861 16 buttons at the right edge of the phone
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1 4637_a91f0e-33> |
Incoming call or voicemail indicator 4637_db1e2a-02> |
|
2 4637_d23c31-ed> |
Line and feature buttons 4637_b3ab32-23> |
|
3 4637_47fc9a-37> |
Softkeys 4637_c09589-0c> |
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4 4637_ad9d04-d9> |
Navigation (navigation ring and Select button 4637_7447a9-cb> |
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5 4637_7392dc-e9> |
Hold, Transfer, and Conference 4637_b7dfba-a4> |
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6 4637_2d4c84-48> |
Speakerphone, Headset, and Mute 4637_2b8078-22> |
|
7 4637_32fb43-6c> |
Voicemail, Applications, and Directory 4637_7ff38a-f9> |
|
8 4637_69e00a-44> |
Volume 4637_e67c36-d4> |
Use line and feature buttons to view calls on a line, or access features such as Speed Dial.Buttons illuminate to indicate status:
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Green, steady 4637_95e6ec-2e> |
Active call 4637_176ec4-f1> |
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Green, flashing 4637_c65201-49> |
Held call 4637_feb8e6-8b> |
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Amber, steady 4637_e9122a-c2> |
Private line in use 4637_8aa2bd-c9> |
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Amber, flashing 4637_cfcf9b-c8> |
Incoming call 4637_f94466-6d> |
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Red, steady 4637_ce6807-f6> |
Remote line in use 4637_31685d-81> |
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Red, flashing 4637_9128bf-8b> |
Remote line on hold 4637_891f6e-ea> |
Model Selection Guide – Cisco CP-7821-K9
- Corporate Mid-Level Offices
Designed for professionals who frequently handle multiple calls, the CP-7821-K9’s two-line capability allows for managing direct lines and shared departmental lines without extra hardware. The backlit display ensures visibility in various lighting conditions, enhancing productivity during extended work hours. - Customer Service & Call Centers
In small to medium-sized call centers, the CP-7821-K9 offers an affordable way to equip agents with reliable VoIP phones that support essential call-handling features, including call forwarding, conferencing, and corporate directory access. - Healthcare Administrative Areas
Hospital administrative desks and clinic reception areas benefit from the phone’s durability and easy-to-read backlit screen, enabling staff to quickly check patient call logs or connect to different departments without delay. - Retail Store Managers & Inventory Offices
Store managers can use the CP-7821-K9 to coordinate with suppliers, handle customer service calls, and manage in-store communications. The dual Ethernet ports allow the phone and a workstation to operate from a single network drop, reducing wiring complexity. - Educational Institution Staff Rooms
University and school administrative teams can leverage the 7821’s simple two-line setup to handle both internal and external communications efficiently, with features like voicemail and call transfer simplifying day-to-day operations.
Specifications
| Parameter | Specification |
|---|---|
| Model | Cisco IP Phone 7821 (CP-7821-K9) |
| Lines Supported | 2 |
| Display | 3.5-inch (396×162 pixels), grayscale, white backlight |
| Ethernet Ports | 2× 10/100BASE-T RJ-45 (LAN and PC ports) |
| Speakerphone | Full-duplex |
| Headset Port | RJ-9 wideband-capable |
| Codec Support | G.711 (A-law/μ-law), G.722, G.722.2, G.729ab, iLBC, OPUS |
| PoE Support | IEEE 802.3af PoE Class 1 (Max 3.84W) |
| Optional Power Supply | Cisco Power Adapter 3 (48V DC, 0.38A) |
| Call Control Support | Cisco Unified Communications Manager 12.5+, Cisco Hosted Collaboration Solution 8.6.2+ |
| Dimensions (H×W×D) | 207 × 206 × 28 mm (excluding foot stand) |
| Weight | 867 g |
| Operating Temperature | 0°C to 40°C (32°F to 104°F) |
| Non-Operating Temperature | -10°C to 60°C (14°F to 140°F) |
| Humidity | Operating: 10% to 90%, non-condensing |
| Certifications | CE, UL 60950, CSA, EN55022, FCC Part 15 Class B |
Get More Information
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Questions & Answers
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Who should deploy Cisco CP-7821-K9 instead of CP-7841 or CP-8851?
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Is CP-7821-K9 compatible with CUCM and Webex Calling?
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Does CP-7821-K9 support PoE?
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Are headsets supported?
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Security features?
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Wall-mounting?
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How to manage many devices?
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Any gigabit passthrough?
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Deployment tips?
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Tough phone. Simple. Works.
Workhorse of our support center. Audio is crisp. Shipping to Philippines was reasonable.
Good price per unit on the 10-pack.
Fast delivery! Box was in perfect shape.