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118 OL-19963-01
Bluetooth Wireless Headsets Performance
The Cisco Unified IP Phone 9951 and 9971 support Bluetooth Class 2 technology when the headsets
support Bluetooth. Bluetooth enables low bandwidth wireless connections within a range of 30 feet
(10 meters). The best performance is in the 3 to 6 feet (1 to 2 meter) range. You can connect up to five
headsets, but only the last one connected is used as the default.
There can be potential interference issues; therefore, it is recommended that you:
• Reduce the proximity of other 802.11b/g devices, Bluetooth devices, microwave ovens, and large
metal objects.
• Use the Cisco Unified IP Phone on the same side of the body as the Bluetooth-enabled headset.
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.
FCC Compliance Statements
The Federal Communications Commission requires compliance statements for the following:
• FCC Part 15.21
• FCC RF Radiation Exposure
• FCC Receivers and Class B Digital
FCC Part 15.21 Statement
Changes or modifications not expressly approved by the party responsible for compliance could void
the user’s authority to operate the equipment.
FCC RF Radiation Exposure Statement
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled
environment. End users must follow the specific operating instructions for satisfying RF exposure
compliance. This transmitter must be at least 20 cm from the user and must not be co-located or
operating in conjunction with any other antenna or transmitter.
FCC Receivers and Class B Digital Statement
This product has been tested and complies with the specifications for a Class B digital device, pursuant
to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used according to the instructions, may cause harmful