CP-6921-C-K9= - Cisco
Cisco Unified IP Phone 6921 Standard - VoIP phone
Part Code: CP-6921-C-K9=
  • Manufacturer: Cisco
  • Product Type: VoIP phone
  • Main Features: Multiple VoIP protocol support, integrated Ethernet switch
  • VoIP Protocols: SCCP, SIP
  • Voice Codecs: G.729a, G.729ab, G.711u, G.711a, iLBC


The Cisco Unified IP Phone 6921 is an innovative endpoint that delivers affordable, business-grade voice communication services to customers worldwide.

The Cisco Unified IP Phone 6921 supports two lines and offers a full-duplex speakerphone for a more productive, more flexible, and easier-to-use endpoint experience. The Cisco Unified IP Phone 6921 supports single-call per-line appearance, offering traditional telephony-like user experience for customers who seek this type of call interaction for their users. Fixed keys for hold, transfer, and conference; tri-color LED line and feature keys also make the phone simpler and easier to use.

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The Cisco Unified IP Phone 6921 offers greater personalization. Right-to-left language presentation is also supported on the displays, addressing the language localization needs of global customers.

The Cisco Unified IP Phone 6921 is also more energy-efficient and eco-friendly, in support of customer green initiatives. A Deep-Sleep option provides energy savings. With this option, the Cisco Unified IP Phone 6921 consumes up to 50 percent less power in off-hours versus when the phone is idle during normal business hours. In addition, reground and recyclable plastics deliver a more earth-responsible solution.

Product Features

  • Lighted hold key
    The key lights when pressed to put a call on hold and stays lit until the held call has been resumed, or flashes if one call is held while another is engaged; the key is dark when no calls are on hold.
  • Lighted menu key
    The key lights when pressed to access voicemail messages, call logs, network settings, user preferences, corporate directories, and XML services; it stays lit while menu items are active.
  • Lighted message waiting indicator
    The key lights when there is new voicemail, and the light is visible on both the phone chassis and the handset; it stays lit until you process your new voicemail.
  • Graphical display
    A 396 x 81 pixel-based, anti-glare, monochrome display with white backlight provides scrollable access to calling features and text-based XML applications.
  • Co-branding
    Co-branding button allows customers to include their logo on the Cisco Unified IP Phone 6900 Series phones. Cisco has approved third-party vendors to produce the buttons.
  • Ethernet switch
    The phone has a 10/100BASE-T Ethernet connection through two RJ-45 ports, one for the LAN connection and the other for connecting a downstream Ethernet device such as a PC.
  • Volume control
    A volume-control toggle provides easy decibel-level adjustments of the handset, monitor speaker, and ringer.
  • Dual-position foot stand
    The display is easy to view and the buttons and keys are easy to use; you can remove the foot stand for wall mounting, with mounting holes located on the base of the phone.
  • Multiple ring tones
    The phone offers seven user-adjustable ring tones.
  • American Disabilities Act (ADA) features
    The hearing-aid-compatible (HAC) handset meets the requirements set by the ADA; it also meets ADA HAC requirements for a magnetic coupling to approved hearing aids. The phone dialing pad also complies with ADA standards.
  • Speakerphone
    Full-duplex speakerphone allows for flexibility in placing and receiving calls.
  • Four softkey buttons and a scroll toggle bar
    Your calling options are dynamically present; the scroll toggle bar allows easy movement through the displayed information.
  • Network features
    Network features include Cisco Discovery Protocol and IEEE 802.1 p/q tagging and switching.
  • Codec support
    G.711a, G.711, G.729a, G.729b, and G.729ab audio-compression codecs are supported.
  • Voice quality
    Comfort-noise generation and voice-activity-detection (VAD) programming is provided on a system basis.
Product Details
Product TypeVoIP phone
Main FeaturesMultiple VoIP protocol support, integrated Ethernet switch
VoIP ProtocolsSCCP, SIP
Voice CodecsG.729a, G.729ab, G.711u, G.711a, iLBC
Lines SupportedMultiline
SpeakerphoneYes ( digital duplex )
Caller IDYes
Voice Mail CapabilityYes
Call ServicesVoice Mail, Caller ID, Call Transfer, Call Hold
DisplayLCD display - monochrome - Yes
Display FeaturesAnti-glare
Network Ports Qty2 x Ethernet 10Base-T/100Base-TX
Body ColourCharcoal
Manufacturer Warranty1 year warranty
Show Detailed Specification Show Detailed Specification
Product TypeVoIP phone
Body ColourCharcoal
Body MaterialABS plastic
Phone Features
Call ServicesVoice Mail, Caller ID, Call Transfer, Call Hold
Dialer TypeKeypad
Dialer LocationBase
Conference Call CapabilityYes
SpeakerphoneYes ( digital duplex )
Menu OperationYes
Function ButtonsConference button, transfer button, hold button
Volume ControlYes
Ringer ControlYes
IndicatorsVoice message waiting indicator
Firmware UpgradableYes
IP Telephony
Main FeaturesMultiple VoIP protocol support, integrated Ethernet switch
VoIP ProtocolsSCCP, SIP
Voice CodecsG.729a, G.729ab, G.711u, G.711a, iLBC
Lines SupportedMultiline
Quality of ServiceIEEE 802.1Q (VLAN), IEEE 802.1p
Power Over Ethernet (PoE) SupportYes
Network ProtocolsTFTP, Cisco Discovery Protocol (CDP)
Network Ports Qty2 x Ethernet 10Base-T/100Base-TX
Voice FeaturesComfort noise generation (CNG), voice activity detection (VAD)
TypeLCD display - monochrome
Display LocationBase
Display Resolution396 x 81 pixels
Display LanguagesDanish, Hungarian, Czech, Croatian, Slovenian, Thai, Slovak, Brazilian Portuguese, English, German, French, Italian, Norwegian, Portuguese, Polish, Finnish, Swedish, Russian, Spanish, Dutch, Greek, Turkish, Bulgarian, Serbian, Romanian, Catalan, Japanese, Chinese, Korean
ConnectionsHeadset jack / RJ-9
Hearing Aid CompatibleYes
Placing / MountingWall-mountable, table-top
Compliant StandardsVCCI Class B ITE, CISPR 22 Class B, CISPR 24, EN 60950, EN 61000-3-2, IEC 60950, EN 61000-3-3, EN55024, UL 60950, EN50082-1, EN55022 Class B, ICES-003 Class B, EN 61000-6-1, ACA TS001, AS/NZS 60950-1, CSA C22.2 No. 60950-00, ADA, FCC CFR47 Part 68, FCC CFR47 Part 15 B
Dimensions & Weight (Base)
Width18.8 cm
Depth20.5 cm
Height16.4 cm
Weight1 kg
Manufacturer Warranty
Service & Support1 year warranty
Service & Support DetailsLimited warranty - 1 year


 Power Adapters and Chargers (1)
 Telephone Accessories (7)

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