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OL-16132-01
FCS REVIEW DRAFT - CISCO CONFIDENTIAL
Headset Information
To use a headset, see
Using a Handset, Headset, and Speakerphone, page 69
. Although Cisco performs
some internal testing of third-party wired and Bluetooth wireless headsets for use with the
Cisco Unified Wireless IP Phone 7925G, 7925G-EX, and 7926G, 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.
Cisco recommends the use of good quality external devices, like headsets that are screened against
unwanted radio frequency (RF) and audio frequency (AF) signals. Depending on the quality of these
devices and their proximity to other devices such as cell phones and two-way radios, some audio noise
may still occur. See
Using External Devices, page 6
for more information.
The primary reason that a particular headset would be inappropriate for the Cisco Unified IP Phone
is the potential for an audible hum. This hum can be heard by either the remote party or by both the
remote party and you, 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 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.
Using Bluetooth Wireless Headsets
Using Bluetooth wireless headsets will likely increase battery power consumption on your phone and
might result in reducing battery life.
For a Bluetooth wireless headset to work, it does not need to be within direct line-of-sight of the phone,
but some barriers, such as walls or doors, and interference from other electronic devices, could affect
the connection.
Audio Quality Subjective to the User
Beyond the physical, mechanical and technical performance, the audio portion of a headset must
sound good to you (the user) and to the party on the far end. Sound is subjective and Cisco cannot
guarantee the performance of any headsets, but some of the headsets on the sites listed below have
been reported to perform well on Cisco Unified IP Phones.
Nevertheless, it is ultimately the customer's responsibility to test this equipment in their own
environment to determine suitable performance.
For information about wired and Bluetooth wireless headsets for your phone, see the
Wireless IP Phone 7925G, 7925G-EX, and 7926G Accessory Guide
and these web sites:
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