Cisco CP-7921G-A-K9, 7921G Datasheet
Data Sheet
Cisco Unified Wireless IP Phone 7921G
Product Overview
Cisco® Unified Communications is a comprehensive IP communications system of voice, video, data, and mobility
products and applications. It enables more effective, more secure, and more personal communications that directly
affect both sales and profitability. It brings people together by enabling a new way of communicating in which your
business moves with you, security is everywhere, and information is always available whenever and wherever it is
needed. Cisco Unified Communications is part of an integrated solution that includes network infrastructure, security,
mobility, network management products, lifecycle services, flexible deployment and outsourced management
options, end-user and partner financing packages, and third-party communications applications.
The power of Cisco Unified Communications extends throughout the enterprise with a powerful, converged wireless
solution with intelligent wireless infrastructure and an innovative product: the new Cisco Unified Wireless IP Phone
7921G (Figure 1). The device delivers on-campus mobility to users using the voice-over-wireless LAN.
.
Figure 1. Cisco Unified Wireless IP Phone 7921G
Features
The Cisco Unified Wireless IP Phone 7921G supports a host of calling features and voice-quality enhancements.
The device is an advanced media IP phone, delivering wideband audio capabilities. In addition to wideband audio,
Cisco Unified Wireless IP Phone 7921G supports presence, which enables users in a mobile Wi-Fi environment to
view the current status of other users. Because the Cisco Unified Wireless IP Phone 7921G is designed to grow with
system capabilities, features will keep pace with new system enhancements. Table 1 provides a list of the features,
Table 2 summarizes wireless characteristics, Table 3 lists specifications, Table 4 lists accessories, and Table 5
provides certification and compliance information.
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Table 1. Features
Feature Description
Features
Buttons
Display
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6 line appearances
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Abbreviated dialing
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Adjustable ringing and volume levels
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Adjustable display brightness and timeout
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Any-key answer
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Audible and vibrating ringers
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Autoanswer
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Autodetection of headset and autoanswer from headset
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Automatic keypad lock
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Barge
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Callback
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Call forward
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Call history lists
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Call park
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Call pickup
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Call timer
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Call waiting
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Caller ID
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cBarge
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Corporate directory
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Conference
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Direct transfer
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Extension mobility service
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Fast-dial service
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Group call pickup
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Hold
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Hotkey for keypad lock, vibration and ring toggle, and voicemail access
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Immediate divert
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Join
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Last-number redial
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Malicious-caller ID
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Message-waiting indicator
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Meet-me conference
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Multilevel precedence and preemption (MLPP)
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Music on hold (MoH)
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Mute
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Network profiles (automatic)
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On- and off-network distinctive ringing
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OPickUp
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Personal directory
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Predialing before sending
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Privacy
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Quality report tool (QRT)
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Redial
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Ring tone per line appearance
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Service URL
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Shared line
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Time and date display
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Transfer
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Two soft-key buttons to access screen-based applications, features, and functions
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Application button that can support push-to-talk using XML
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Mute
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Speakerphone
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5-way navigation support
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Volume control
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Send button and power and end button
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2 in. (5 cm) color display with 176 x 220–pixel resolution
Data Sheet
© 1992-2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 2 of 9
Data Sheet
LED
Protocol support
Codec support
Configuration options
Network features
Security features
Provisioning and
management
Deployment tools Integrated site survey tool
Language support Bulgarian, Catalan, Chinese, Croatian, Czech, Danish, Dutch, English, Finnish, French, German, Greek, Hungarian,
●
Ring, message waiting, and charging LED
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Skinny Client Control Protocol (SCCP)
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Cisco Unified Communications Manager Versions 4.1, 4.2, 4.3, 5.0, 5.1, 6.0, 6.1, 7.0, and later
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Cisco Unified Communications Manager Express Version 4.1 and later
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Cisco Unified Survivable Remote Site Telephony (SRST) Version 4.1 and later
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Cisco Compatible Extensions Version 4.0
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XML
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G.711a, G.711u, G.729a, G.729ab, G.722, and iLBC audio compression codecs
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Dynamic Host Configuration Protocol (DHCP) client or statically configured
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Support for online firmware upgrades using Trivial File Transfer Protocol (TFTP)
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Domain Name System (DNS)
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Cisco Discovery Protocol
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Transparent secure roaming
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Provisioning of network parameters through DHCP
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Certificates
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Image authentication
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Device authentication
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File authentication
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Signaling authentication
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Secure Cisco Unified SRST
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Media encryption using Secure Real-Time Protocol (SRTP)
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Signaling encryption using Transport Layer Security (TLS) Protocol
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Certificate authority proxy function (CAPF)
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Secure profiles
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Encrypted configuration files
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Web server for configuration and statistics
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Capability to disable local phone settings
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Quality-of-service (QoS) reporting: jitter, delay, dropped packets, and latency on a per-call basis
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Real Time Control Protocol (RTCP) support and monitoring
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Syslog
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Wavelink Avalanche (
Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Romanian, Russian, Serbian, Slovak, Slovenian,
Spanish, and Swedish
http://www.wavelink.com)
Table 2. Wireless Characteristics
Item Description
Network standard IEEE 802.11a, 802.11b, and 802.11g
Frequency band and
operating channels
© 1992-2009 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 3 of 9
FCC: (-A)
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2.412-2.462 GHz; 11 channels
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5.180-5.240 GHz Unlicensed National Information Infrastructure (UNII-1); 4 channels
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5.260-5.320 GHz (UNII-2); 4 channels
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5.500-5.700 GHz; (UNII-2 Extended); 8 channels
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5.745-5.805 GHz (UNII-3); 4 channels
ETSI: (-E)
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2.412-2.472 GHz; 13 channels
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5.180-5.700 GHz; 19 channels
Japan : (-P)
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2.412-2.472 GHz; 13 channels Orthogonal Frequency Division Multiplexing (OFDM)
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2.412-2.484 GHz; 14 channels Complementary Code Keying (CCK)
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5.180-5.700 GHz; 19 channels
Rest of world: (-W)
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Uses IEEE 802.11d to identify band ranges and channels
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