Cisco Unified IP Phone 7940G
Unified IP phone products include phones with large pixel-based displays to
bring productivity-enhancing applications to the phones, as well as
customization options that can be modified as needs change, and provide inline
power support over Ethernet. The Cisco Unified IP Phone 7940G (Figure 1) is
multiprotocol-enabled to support Session Initiated Protocol (SIP), Media
Gateway Control Protocol (MGCP), as well as the Cisco Unified CallManager
Skinny Client Control Protocol (SCCP).
offering in the IP phone portfolio, the Cisco Unified IP Phone 7940G addresses
the communications needs of a transaction-type worker. It provides two
programmable line and feature keys, plus a high-quality speakerphone. The Cisco
Unified IP Phone 7940G also has four dynamic soft keys that guide users through
call features and functions. A built-in headset port and an integrated Ethernet
switch are standard with the Cisco Unified IP Phone 7940G. The phone also
includes audio controls for the full-duplex speakerphone, handset, and headset.
This phone also features a large, pixel-based LCD display that provides
information such as date and time, calling party name, calling party number,
and digits dialed. Figure 2 shows the icon buttons on the phone, with word
overlay in English included in the documentation package with each phone.
Cisco Unified IP Phone 7940G Icons
capability of the display allows for the inclusion of such features as
Extensible Markup Language (XML) and future features. The Cisco Unified IP
Phone 7940G is multiprotocol-capable (SCCP, SIP, and MGCP).
Unified IP Phone 7940G is dynamic and designed to grow with system capabilities.
Features will keep pace with new changes through software updates to the phone
flash memory. The phone provides many accessibility methods according to user
preference. Various methods or paths include buttons, soft keys, a navigation
key, and direct access with the use of corresponding "ghost" digits.
Each of the following features will have expanded capabilities in the future:
Messages - the Messages key offers direct access to voicemail. In the
near future voicemail speech-to-text readout will be available on the display
Directories - the Cisco Unified IP Phone 7940G identifies incoming
messages and categorizes them for users on the screen, allowing users to
quickly and effectively return calls using direct dial-back capability
Settings - the Settings feature key allows the user to adjust display
contrast and select from a large number of unique ringer sounds, volume
settings for all audio such as ringer, handset, headset, and speaker. Network
configuration preferences can also be set up. (Network configuration is usually
set up by the system administrator.) Configuration can be either automatic or
manually set up for Dynamic Host Control Protocol (DHCP), Trivial File Transfer
Protocol (TFTP), Cisco Unified CallManagers, and backup Cisco Unified
Services - the Cisco Unified IP Phone 7940G allows users to quickly
access diverse information such as weather, stocks, quote of the day, or any
Web-based information using XML to provide a portal to an ever-growing world of features and information
Help - the online help feature gives users information about the phone
keys, buttons, and features. The pixel display allows for greater flexibility
of features and significantly expands the information viewed when using features such as Services, Information,
Messages, and Directory. For example, the Directory button can show local and
server-based directory information
Speaker and Mute Buttons - the Cisco Unified IP Phone 7940G features
high-quality, speakerphone technology. It also includes an easy-to-use speaker
on/off button and microphone mute buttons. These buttons are lit
The internal Cisco two-port Ethernet switch allows for a direct connection to a
10/100BASE-T Ethernet network through an RJ-45 interface with single LAN
connectivity for both the phone and a co-located PC. The system administrator
can designate separate VLANs (802.1Q) for the PC and Cisco IP phones, providing
improved security and reliability of voice and data traffic.
headset port eliminates the need for a separate amplifier when using a headset,
allowing the handset to remain in its cradle and thereby making headset use
simpler. The convenient volume control button on the phone provides for easy
decibel-level adjustments for the speakerphone, handset, headset, and ringer.
The handset is hearing aid-compatible (HAC) and meets FCC loudness requirements
for Americans with Disabilities Act (ADA). Section 508 loudness requirements
can be achieved using industry-standard inline handset amplifiers such as
Walker Equipment W-10 or CE-100 amplifiers.
The dial pad
is also ADA-compliant.
footstand of the Cisco Unified IP Phone 7940G is adjustable from flat to 60
degrees to provide optimum display viewing and comfortable use of all buttons
and keys. The footstand is keyed to match standard wall jack configurations for
wall mounting. Two optional wall-mount brackets are also offered.
Unified IP Phone 7940G can also receive power down the LAN from any of the
Cisco Inline Power-capable blades and boxes.
security, the audible dual tone multifrequency (DTMF) tones are masked when the
speakerphone mode is used.
Unified IP Phone 7940G features include:
• 24+ user-adjustable ring tones
• A HAC handset (meets ADA requirements) and HAC compliance for magnetic
coupling to approved HAC hearing aids
• G.711 and G.729a audio compression
• H.323 and Microsoft NetMeeting compatibility
• An IP address assignment-DHCP client or statically configured
• Comfort noise generation and voice activity detection (VAD)
programming on a system basis
The phone also includes the following settings:
• Display contrast
• Ring type
• Network configuration
• Call status
Firmware changes downloaded from Cisco Unified CallManager and Cisco.com
• Dimensions: 8 x 10.5 x 6 in. (20.32 x 26.67 x 15.24 cm) (H x W x D)
• Phone weight: 3.5 lb (1.6 kg)
• Polycarbonate acrylonitrile butadiene styerene (PABS) plastic in
textured dark gray color with silver bezel
• 48 VDC required, supplied locally at the desktop using an optional AC-to-DC
power supply (CP-PWR-CUBE-3=)
• Requires ordering one of the AC country cords listed in the following
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