Speakerphone, Headset – Cisco 7971G User Manual
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Chapter 3 Setting Up the Cisco Unified IP Phone
Understanding the Cisco Unified IP Phone 7970G/7971G-GE Components
3-6
Cisco Unified IP Phone Administration Guide for Cisco Unified CallManager 5.0 (SIP), Cisco Unified IP Phones
OL-8182-01
Speakerphone
By default, the speakerphone is enabled on Cisco Unified IP Phones
7970G/7971G-GE.
You can disable the speakerphone through the Cisco Unified CallManager
Administration application. To do so, choose Device > Phone and locate the
phone you want to modify. In the Phone Configuration web page for the phone,
check the Disable Speakerphone check box.
Headset
Although Cisco Systems performs some 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. Because of the inherent environmental
and hardware inconsistencies in the locations where Cisco Unified IP Phones are
deployed, there is not a single “best” solution that is optimal for all environments.
Cisco recommends that customers test the headsets that work best in their
environment before deploying a large number of units in their network.
In some instances, the mechanics or electronics of various headsets can cause
remote parties to hear an echo of their own voice when they speak to
Cisco Unified IP Phone users.
Cisco Systems recommends the use of good quality 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
cell phones and two-way radios, some audio noise may still occur.
The primary reason that support of a headset would be inappropriate for an
installation is the potential for an audible hum. This hum can either be heard by
the remote party or by both the remote party and the Cisco Unified IP Phone user.
Some potential humming or buzzing sounds can be caused by a range of outside
sources, for example, electric lights, being near electric motors, large PC
monitors. In some cases, a hum experienced by a user may be reduced or
eliminated by using a local power cube (CP-PWR-CUBE-3). See the
for more information.