Chapter 3
Setting Up the Cisco Unified IP Phone
Use the SW network port to connect the phone to the network. You must use a straight-through cable on
this port. The phone can also obtain inline power from a switch over this connection. See the
Power to the Phone" section on page 2-3
Use the PC access port to connect a network device, such as a computer, to the phone. You must use a
straight-through cable on this port.
Handset
The handset is designed especially for use with the Cisco Unified IP Phone 7931G. It includes a light
strip that indicates incoming calls and voice messages waiting.
To connect a handset to the Cisco Unified IP Phone, plug the cable into the handset and the Handset port
on the back of the phone.
The handset does not support wideband audio.
Note
Speakerphone
By default, the speakerphone is enabled on the Cisco Unified IP Phone 7931G.
You can disable the speakerphone by using the Cisco Unified Communications Manager Administration.
To do so, choose Device > Phone and locate the phone you want to modify. In the Phone Configuration
window for the phone, check the Disable Speakerphone check box.
Headset
Although Cisco performs internal testing of third-party headsets for use with the Cisco Unified IP
Phones, Cisco does not certify or support products from headset or handset vendors.
Cisco recommends the use of good quality external devices, for example, headsets that are screened
against unwanted radio frequency (RF) and audio frequency (AF) signals. Depending on the quality of
headsets and their proximity to other devices such as mobile phones and two-way radios, some audio
noise or echo may still occur. An audible hum or buzz may be heard by either the remote party or by both
the remote party and the Cisco Unified IP Phone user. Humming or buzzing sounds can be caused by a
range of outside sources; for example, electric lights, electric motors, or PC monitors. See
External Devices, page 3-4
Note
The Cisco Unified IP Phone 7931G supports wideband headsets.
Note
In some cases, hum may be reduced or eliminated by using a local power cube or power injector.
These environmental and hardware inconsistencies in the locations where Cisco Unified IP Phones are
deployed means that there is not a single headset solution that is optimal for all environments.
Cisco recommends that customers test headsets in their intended environment to determine performance
before making a purchasing decision and deploying en mass.
Cisco Unified IP Phone 7931G Administration Guide for Cisco Unified Communications Manager 7.1 (SCCP and SIP)
OL-18988-01
Understanding the Cisco Unified IP Phone 7931G Components
for details.
for more information.
"Providing
Using
3-3
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