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header-product IP Phone Cisco CP-7821-K9= Black Silver
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AiO.lv Office Equipment Communication Equipment VoIP Phones Cisco

IP Phone Cisco CP-7821-K9= Black Silver

IP Phone Cisco CP-7821-K9= Photo 1
IP Phone Cisco CP-7821-K9= Photo 1
IP Phone Cisco CP-7821-K9= Black Silver
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Short description

The Cisco IP Business Phone 7821 features a 3.5-inch greyscale display, supports 2 lines, and offers digital volume control. It includes various voice codecs such as G.711a, G.722, G.729A, G.729B, and iLBC, ensuring high-quality audio. With Class 1 PoE support, it simplifies installation and reduces cable clutter. The phone is designed for reliability and comes with a 1-year limited hardware warranty.
Warranty: 2 Years
SKU: 1912317
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Product information

Description

The Cisco IP Business Phone 7821 with Multi-Platform Phone Firmware provides high-fidelity voice communications for medium-sized and large companies that are migrating from analogue or digital telephone systems to IP-based communications. The phone features a 3.5-inch greyscale display, supports two lines, offers speakerphone and digital volume control, and supports multiple voice codecs for clear audio. It also supports Class 1 Power over Ethernet (PoE) for simplified installation and reduced cabling and is backed by a 1-year limited hardware warranty.

Advantages

The Cisco CP-7821-K9= delivers reliable voice quality through support for codecs such as G.711a, G.722, G.729A, G.729B and iLBC, while PoE support reduces the need for separate power adapters. Its wired handset and built-in speakerphone enable hands-free and deskphone use, and the compact 3.5-inch greyscale display provides essential call information with a small footprint. The device is available in black and silver and is designed for business environments requiring stable, standards-based VoIP telephony.

Suitable for

  • Office environments in medium-sized and large companies
  • Migrating from analogue or digital PBX to IP telephony
  • Workspaces that require a reliable desk phone with PoE
  • Shared desks or reception areas needing speakerphone capability

Key specifications

  • Model: Cisco CP-7821-K9=
  • Display: 3.5-inch greyscale
  • Lines: 2 lines
  • Codecs: G.711a, G.722, G.729A, G.729B, iLBC
  • Speakerphone: Yes
  • Handset type: Wired handset
  • PoE: Class 1 Power over Ethernet
  • Ethernet LAN: Yes
  • Weight: 0.867 kg
  • Colour: Black, Silver
  • Warranty: 1-year limited hardware warranty

How to use

Connect the Cisco CP-7821 to your network using an Ethernet cable to a PoE-capable switch or injector to power the device and provide data connectivity. Follow your organisation's IP phone provisioning procedure or use the Multi-Platform Phone Firmware to register the phone with your SIP or Cisco call control system. Use the handset or built-in speakerphone for calls, adjust volume using the digital controls, and consult the system administrator for advanced feature configuration.

Usage recommendations

Install the phone on a stable desk surface and connect it to a PoE source to avoid additional power adapters. Ensure network QoS settings prioritise voice traffic for optimal call quality and register the device using your organisation's provisioning method for correct feature activation.

Specifications

Touchscreen:
No
Lines quantity:
2 lines
Speakerphone:
Yes
Bluetooth:
No
Ethernet LAN:
Yes
Power over Ethernet (PoE):
Yes
Weight:
0.867 kg
Handset type:
Wired handset
Product colour:
Silver, Black
All features

Display

Touchscreen:
No
Display diagonal: iagonal of the visible part of the screen expressed in centimeters and inches.
3.5 "
Display resolution:
396 x 162

Phone features

Conference call:
Yes
Caller ID:
Yes
Call forwarding:
Yes
Answering machine:
Yes
Call waiting:
Yes
Speed dialling:
Yes
Call hold:
Yes
Lines quantity:
2 lines

Audio

Speakerphone:
Yes
Voice codecs:
G.711a, G.722, G.729A, G.729B, iLBC

Ports & interfaces

Ethernet LAN (RJ-45) ports:
2

Network

Security algorithms:
802.1x RADIUS
Supported network protocols:
IEEE 802.3, IEEE 802.3u, IEEE 802.3af
Ethernet LAN:
Yes
Bluetooth:
No
Wi-Fi:
No
Quality of Service (QoS) support:
Yes

Power

Power over Ethernet (PoE):
Yes

Weight & dimensions

Weight:
0.867 kg
Package weight:
1201.81 g
Height:
28 mm
Width:
207 mm
Depth:
206 mm
Package depth:
279.908 mm
Package height:
71.882 mm
Package width:
234.95 mm

Operational conditions

Operating relative humidity (H-H):
10 - 90
Storage temperature (T-T):
-10 - 60
Operating temperature (T-T):
0 - 40
Storage relative humidity (H-H):
10 - 95

Certificates

Safety:
UL 60950, CAN/CSA - C22.2, EN 60950, IEC 60950, AS/NZS 60950, GB4943

Logistics data

Country of origin:
China
Quantity per pack:
1 pc(s)
Harmonized System (HS) code:
85171800

Design

Wall mountable:
Yes
Product colour:
Silver, Black
Mounting:
Desk/Wall
Handset type:
Wired handset
Case material:
Polycarbonate
Product type:
IP Phone

Management features

Volume control:
Digital
Integrated voicemail:
Yes
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What is the warranty period?

All Cisco products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Cisco service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: touchscreen, lines quantity, speakerphone, bluetooth, ethernet lan, power over ethernet (poe), weight, handset type, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.
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