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CP-7821-K9
Model: CP-7821-K9 Cisco UC Phone 7821
Detail:
Cisco IP Phone 7821
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CP-7821-K9

Cisco IP Phone 7821

List Price: US$302.00
Price: US$124.00
Overview
Specification
Reviews
Q&A
Warranty
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Overview

CP-7821-K9 Overview

The Cisco IP Phone 7821 is designed for small to large businesses. It delivers advanced IP Telephony features and crystal clear wideband audio performance to deliver an easy-to-use, full-featured voice communications experience on Cisco on-premises and hosted infrastructure platforms and third party hosted call control.

Quick Specs

Figure 1 shows the appearance of the CP-7821-K9.

CP-7821-K9

Table 1 shows the Quick Spec.

Product Code

CP-7821-K9

Screen

384 x 106 pixel (3.28 in. / 83.3 mm)

Ethernet Switch

10/100

Programmable Line Keys

2

Full Duplex Speakerphone

Yes

Number of Line Keys

2

Wideband Audio

Yes

PoE Class

1

Third-party Call Control

Yes

Replaceable Bezel

Yes

Package Weight

1.7 Kg

Product Details

Before you use the Cisco IP Phone 7821, it should be connected to the corporate IP telephony network.

Figure 2 shows the bottom ports of this IP Phone.

CP-7821-K9 Back Panel

Note:

① AC power wall plug (optional)

② Network port (10/100 SW) connection. IEEE 802.3af power enabled

③ Access port (10/100 PC) connection

④ Auxiliary port (optional)

⑤ Handset connection

⑥ Analog headset connection (optional)

Figure 3  shows the buttons and hardware.

CP-7821-K9 Front Panel

Note:

① Handset light strip      ② Programmable feature buttons      ③ Phone screen              ④ Softkey buttons      ⑤ Navigation and Select button     ⑥ Hold/Resume button

⑦ Conference button      ⑧ Transfer button                                  ⑨ Speakerphone button⑩ Headset button      ⑪ Mute button                                    ⑫ Keypad      

⑬ Volume button             ⑭ Contacts button                                 ⑮ Applications button     ⑯ Messages button   ⑰ Handset

Figure 4 shows the unboxing view of CP-7821-K9.

CP-7821-K9 unboxing view

Compare to Similar Items

Table 2 shows the comparison of Cisco IP Phone 7811, 7821, 7841 and 7861.

Model

CP-7811-K9

CP-7821-K9

CP-7841-K9

CP-7861-K9

Ethernet switch

10/100

10/100

10/100/1000

10/100

Programable line keys

0

2

4

16

Number of Line Keys

0

2

4

16

Full duplex speakerphone

Yes (narrowband)

Yes

Yes

Yes

PoE Class

1

1

1

1

Third-party call control

Planned

Yes

Yes

Yes

Replaceable bezel

N/A

Yes

Yes

Yes

Solution

How to use this product to build Network for Small Business (Requires Router & Voice Module)?

See here: SMB Network Options

Get more information

Do you have any question about the Cisco IP Phone 7821/K9?

Contact us now via Live Chat or sales@router-switch.com.

Quality Certifications
Specification

CP-7821-K9 Specification

CP-7821-K9 Specifications

Signaling protocol support

●  Session Initiation Protocol (SIP)

Codec support

●  G.711a/μ, G.722, G.729a, iLBC

Key call features support

●  + Dialing (E.164)

●  Abbreviated dial

●  Adjustable ringing and volume levels

●  Adjustable display contrast

●  Agent greeting

●  Auto-answer

●  Auto-detection of headset (Not available on the IP Phone 7811)

●  Busy Lamp Field (BLF) (Not available on the IP Phone 7811)

●  Call back

●  Call forward

●  Call history

●  Call park

●  Call Pickup

●  Call timer

●  Call waiting

●  Caller ID

●  cBarge

●  Corporate directory

●  Conference

●  Cross Cluster Extension Mobility (EMCC)

●  Dial from the list

●  Direct transfer

●  Do not disturb

●  Extension Mobility (EM)

●  Forced access codes and client matter codes

●  Group call pickup

●  Hold/resume

●  Immediate divert

●  Intercom (Not available on the IP Phone 7811)

●  Join (Not available on the IP Phone 7811)

●  Message-waiting indicator

●  Meet me conference

●  Mobility

●  Music on hold

●  Mute

●  Network profiles (automatic)

●  On- and off-network distinctive ringing

●  Personal directory

●  Privacy

●  Private Line Automated Ringdown (PLAR)

●  Redial

●  Ring tone per line appearance

●  Shared line

●  Silent monitoring and recording

●  Speed dial

●  Time and date display

●  Transfer

●  Voicemail

●  Whisper coaching

Language support

●  Arabic (Arabic Area)

●  Bulgarian (Bulgaria)

●  Catalan (Spain)

●  Chinese (China)

●  Chinese (Hong Kong)

●  Chinese (Taiwan)

●  Croatian (Croatia)

●  Czech (Czech Republic)

●  Danish (Denmark)

●  Dutch (Netherlands)

●  English (United Kingdom)

●  Estonian (Estonia)

●  French (France)

●  Finnish (Finland)

●  German (Germany)

●  Greek (Greece)

●  Hebrew (Israel)

●  Hungarian (Hungary)

●  Italian (Italy)

●  Japanese (Japan)

●  Latvian (Latvia)

●  Lithuanian (Lithuania)

●  Korean (Korea Republic)

●  Norwegian (Norway)

●  Polish (Poland)

●  Portuguese (Portugal)

●  Portuguese (Brazil)

●  Romanian (Romania)

●  Russian (Russian Federation)

●  Spanish (Columbia)

●  Spanish (Spain)

●  Slovak (Slovakia)

●  Swedish (Sweden)

●  Serbian (Republic of Serbia)

●  Serbian (Republic of Montenegro)

●  Slovenian (Slovenia)

●  Thai (Thailand)

●  Turkish (Turkey)

Multiple ring tones

●  The phone supports user-adjustable ring tones.

Directories

●  The phone identifies incoming messages and categorizes them for users on the screen.

This makes it fast and easy to return calls using direct dial-back capability. The corporate

directory integrates with the Lightweight Directory Access Protocol (LDAP) standard directory.

Quality-of-service (QoS) options

●  The phone supports CDP and 802.1Q/p standards, and can be configured with an

801.1Q VLAN header containing the VLAN ID overrides configured by the Admin VLAN ID.

Security

●  Certificates

●  Image authentication

●  Device authentication

●  File authentication

●  Signaling authentication

●  Media encryption using Secure Real-Time Transfer Protocol (SRTP) using AES-128

●  Signaling encryption using Transport Layer Security (TLS) Protocol using AES-128 or AES-256

●  Encrypted configuration files

●  802.1X authentication

●  Cryptography

Configuration options

●  The user can configure IP address assignment statically or through the DHCP client.

Physical dimensions (H×W×D)

●  IP Phone 7821: 207 x 206 x 28mm (exclude foot stand)

Weight

●  IP Phone 7821: 867g

Display

●  IP Phone 7821: 3.5” 396×162 pixels

Ethernet switch

●  The phone has a 10/100BASE-T or a 10/100/1000BASE-T 

Phone casing composition

●  Polycarbonate acrylonitrile butadiene styrene (ABS) textured plastic.

Power requirements

●  The phone is an interoperable IEEE 802.3af PoE (Class 1 device); 48 VDC is required;

it can be supplied locally at the desktop using an optional AC-to-DC power supply (CP-PWR-CUBE-3=).

Use of the power supply also requires the use of one of the corresponding AC country cords.

Operational temperature

●  32 to 104°F (0 to 40°C)

Nonoperational temperature shock

●  14 to 140°F (-10 to 60°C)

Humidity

●  Operating 10% to 90%, non-condensing

●  Non-operating 10% to 95%, non-condensing

Cosmetic

●  Cisco cosmetic class A

Certification and compliance

●  Regulatory Compliance

◦   CE Markings per directives 2004/108/EC and 2006/95/EC

●  Safety

◦   UL 60950 Second Edition

◦   CAN/CSA-C22.2 No. 60950 Second Edition

◦   EN 60950 Second Edition (including A11 & A12)

◦   IEC 60950 Second Edition (including A11 & A12)

◦   AS/NZS 60950

◦   GB4943

●  EMC - Emissions

◦   47CFR Part 15 (CFR 47) Class B

◦   AS/NZS CISPR22 Class B

◦   CISPR22: 2005 w/Amendment 1: 2005 Class B

◦   EN55022: 2006 w/Amendment 1: 2007 Class B

◦   ICES003 Class B

◦   VCCI Class B

◦   EN61000-3-2

◦   EN61000-3-3

◦   KN22 Class B

●  EMC - Immunity

◦   EN55024

◦   CISPR24

◦   EN60601-1-2

◦   KN24

◦   Armadillo Light

●  Telecom

◦   FCC Part 68 HAC

◦   CS-03-HAC

◦   AS/ACIF S004

◦   AS/ACIF S040

◦   NZ PTC 220

◦   Industry Standards: TIA 810 and TIA 920

◦   Industry Standards: IEEE 802.3 Ethernet, IEEE 802.3af and 802.3at
Q&A

Questions & Answers

What accessories are available for the Cisco IP Phone 7821?

The Cisco IP Phone 7821 is a cost-effective solution for businesses looking for reliable voice communication. It offers a great balance between essential features, affordability, and Cisco's renowned quality and reliability.

How cost-effective is the Cisco IP Phone 7821?

Yes, the Cisco IP Phone 7821 has a built-in RJ-9 headset port, allowing you to connect a compatible headset for hands-free communication. This is especially useful for busy professionals who need to multitask while on calls.

Can I use the Cisco IP Phone 7821 with a headset?

The Cisco IP Phone 7821 provides easy access to features like call transfer, conferencing, and mute, allowing users to handle calls efficiently. Its high-quality audio and ergonomic design contribute to clear communication and user comfort, enhancing overall productivity.

How can the Cisco IP Phone 7821 improve productivity in the workplace?

The CP-7841-K9 offers a 3.5-inch white backlit display, wideband audio, and support for up to four lines. It also has built-in Ethernet switch ports for connecting a PC.

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