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CP-7841-K9 – Cisco IP Phone – VoIP Phone
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Packaging weight and dimensions included:
| Weight | 1 kg |
|---|---|
| Dimensions | 28 × 24 × 7.5 cm |
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CP-7841-K9 Description
The Cisco IP Phone 7841 (CP-7841-K9) is a versatile, enterprise-grade VoIP endpoint designed for professionals who require multi-line flexibility and high-speed connectivity. Part of the Cisco 7800 Series, the 7841 supports four programmable lines, making it ideal for executives, administrative assistants, and knowledge workers handling high call volumes.Its 3.5-inch backlit grayscale display provides excellent visibility, while intuitive navigation keys allow quick access to advanced calling features such as conferencing, call park, and corporate directory. With dual Gigabit Ethernet ports, the CP-7841-K9 ensures maximum network performance for both the phone and a connected workstation.The device supports wideband audio for superior voice clarity and integrates seamlessly with Cisco Unified Communications Manager (12.5 and later) or Cisco Hosted Collaboration Solution. PoE Class 1 support enables flexible deployment without additional power adapters, and the phone meets Energy Star requirements for energy efficiency.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Lines Supported |
4 |
|
Display |
3.5-inch (396×162 pixel) grayscale, white backlight |
|
Ethernet Ports |
2× 10/100/1000BASE-T RJ-45 (LAN & PC) |
|
Codec Support |
G.711 (A-law/μ-law), G.722, G.722.2, G.729ab, iLBC, OPUS |
|
Speakerphone |
Full-duplex |
|
Headset Port |
RJ-9 wideband-capable |
|
PoE |
IEEE 802.3af Class 1 (Max 3.84W) |
|
Power Supply (Optional) |
Cisco Power Adapter 3 (48V DC, 0.38A) |
|
Dimensions (H×W×D) |
207 × 206 × 28 mm (excluding foot stand) |
|
Weight |
868 g |
|
Operating Temperature |
0°C to 40°C (32°F to 104°F) |
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
|
1 |
Incoming call or voicemail indicator |
|
2 |
Line and feature buttons |
|
3 |
Softkeys |
|
4 |
Navigation (navigation ring and Select button |
|
5 |
Hold, Transfer, and Conference |
|
6 |
Speakerphone, Headset, and Mute |
|
7 |
Voicemail, Applications, and Directory |
|
8 |
Volume |
Model Selection Guide – Cisco CP-7841-K9
- Executive & Power User Workstations
The CP-7841-K9 is tailored for executives, managers, and administrative assistants who need to handle multiple concurrent calls efficiently. Its four programmable lines allow direct access to internal teams, clients, and shared departmental numbers without complicated key sequences. - High-Volume Administrative Offices
In environments such as law firms, real estate agencies, or finance departments, where staff juggle multiple customer and vendor calls daily, the CP-7841-K9 offers fast line switching, an intuitive interface, and excellent audio quality for professional interactions. - Contact Center Supervisors
Supervisors managing teams benefit from the 7841’s multi-line capacity to monitor team lines, assist in live calls, and coordinate with management, ensuring smooth call center operations. - Healthcare Front Office & Scheduling Desks
Hospital scheduling teams and clinic front desks can leverage the four-line setup to manage patient inquiries, doctor coordination, and external vendor communication without missing calls. - Government & Public Sector Offices
The CP-7841-K9 is well-suited for municipal service desks, administrative offices, and procurement departments that need secure, reliable communications with multiple stakeholders.
Specifications
| Parameter | Specification |
|---|---|
| Model | Cisco IP Phone 7841 (CP-7841-K9) |
| Lines Supported | 4 |
| Display | 3.5-inch (396×162 pixels), grayscale, white backlight |
| Ethernet Ports | 2× 10/100/1000BASE-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 | 868 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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Quality Certifications
Customer Reviews
Questions & Answers
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Why choose Cisco CP-7841-K9 for standard office use?
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Is CP-7841-K9 compatible with Webex Calling and CUCM?
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Does CP-7841-K9 support headsets?
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What PoE class should I plan?
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Can it be wall-mounted?
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Security features?
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How does it compare to CP-7811-K9?
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Does it have gigabit passthrough?
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Best practices for deployment?
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Troubleshooting call quality?
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Sharp audio quality. No static. Reliable.
4 lines are perfect for our managers. Gigabit switch port is handy.
Arrived next day in London. UK power supply included as requested.