Cisco 7821 IP Phone

Cisco 7821 IP Phone

The Cisco 7821 is a two line IP phone from the Cisco 7800 series for small business. The 7821 is easy to set up with PoE capability, EHS headset support, and a 3.5″ white backlit display with 4 context-sensitive soft keys.



Cisco IP Phone 7821

The Cisco 7821 IP phone includes a 2-way navigation button and dedicated fixed keys for commonly used office call needs like conference, messaging, and directory. Full wideband audio (G.722) supplies superior voice quality performance through the handset, speakerphone, and third party headsets. The 8721 has added electronic hookswitch control for flexibility in managing calls and extending mobility around the office.The 7821 can be PoE or powered by an AC power adapter, and desk mount or wall mount functionality allows this IP phone to be used for many different business environments.

The 7821 can be PoE or powered by an AC power adapter, and desk mount or wall mount functionality allows this IP phone to be used for many different business environments.

Technical Details
Integrated Voice MailYes
Adjusting the volumeDigital
Type of headphonesWired
Case Material  Cardboard, leather, plastic or other material from which the cover.Polycarbonate
Integrated Answering Machine  The device has an answering machine on which you can record your voice messages when the line is busy or no answer.Yes
Speaker  The phone that also has a microphone and speaker, in addition to the built-in receiver.  The device allows you to participate in a call more people.  Speaker to amplify the voice of an incoming call, the microphone is used to capture and voices of people talking.Yes
Diagonal screen size (inch)  Display size of the product;  expressed in inches, diagonally3.5 “
Resolution  The resolution of the display for the system.396 x 162 pixels
Touch sensitive screen  Laptop screen, smartphone, etc., That reacts to touch, so you can control the device with your fingers.Not
Connection parameters
Number of lines  The number of telephone lines.2
The ability to forward callsYes
Speed ​​DialYes
Name and Caller ID  The name and number of the caller displays on the screen.  Callers also someone you can share your number.Yes
Conference call capabilityYes
Call WaitingYes
Call on holdYes
Voice CodecsG.711a, G.722, G.729A, G.729B, iLBC
Bluetooth  Bluetooth is a low-power radio technology developed to replace the wires and cables currently used to connect electronic devices such as personal computers, printers, and a wide range of mobile devices, including cell phones.  Due to the fact that Bluetooth uses radio waves as a communication system using Bluetooth devices are permanently connected, regardless of the browser used.  This saves you the hassle of logging, for example, to check e-mail or news updates.Not
Wi-Fi  The popular technology for data transmission and wireless internet using radio waves.Not
Supported network protocols  Network protocols tested as compatible with this productIEEE 802.3, IEEE 802.3u, IEEE 802.3af
Wired Ethernet LAN  Interface Ethernet LAN (Local Area Network) is used for connection.Yes
Service quality of service (QoS)Yes
Encryption / Security  Encryption algorithms are used for authentication, encryption keys and privacy radio connection.  Supported encryption algorithms are those that can be used with this product.802.1x RADIUS
Ethernet LAN (RJ-45)  Number of Ethernet LAN (RJ-45) on the device.  Ports Ethernet LAN (RJ-45), allow the computer to connect to the Ethernet network.2
Power Management
PoE support  The device supports Power over Ethernet (PoE) technology for electricity transmission via Ethernet cables to peripheral devices which are elements of the network.  This allows you to send both data and electrical power to devices such as wireless access points or IP cameras through a single cable.Yes
Weight & dimensions
Width  A measure of the width.207 mm
Depth  Distance from front to back on course.206 mm
Height  Product height.28 mm
Weight  Weight without packaging (net).  Where possible, the net weight is used in conjunction with the weight of the equipment standard equipment.  Please note that some manufacturers understand the importance of the product as a single unit without taking into account the weight of accessories and / or supplies.867 g
External conditions
Relative humidity range10 – 90%
Relative humidity10 – 95%
Temperature range (operation)  The minimum and maximum temperature at which it is safe to use the device.0 – 40 ° C
Temperature range (storage)  The minimum and maximum temperature at which the device can be stored safely.-10 – 60 ° C
Color  Color, eg. Red, blue, green, black, white.Black
Wall mount / ceiling projection on  The device can be attached to the wall.Yes
Safety  List of regulatory standards for all countries where the product has been approved.UL 60950, CAN / CSA – C22.2, EN 60950, IEC 60950, AS / NZS 60950, GB4943