Bluetooth Wireless Headset Performance; Power Information; Phone Behavior During Times Of Network Congestion; Fcc Compliance Statements - Cisco 8811 User Manual

Bluetooth Wireless Headset Performance

Cisco cannot guarantee the performance of external devices, cables, and connectors.
Caution In European Union countries, use only external speakers, microphones, and headsets that are fully compliant
with the EMC Directive [89/336/EC].
Bluetooth Wireless Headset Performance
Cisco IP phones 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-foot (1- to 2-meter) range. You can connect up to five headsets, but only the last one connected is used
as the default.
Because of potential interference issues, we recommend that you move 802.11b/g devices, Bluetooth devices,
microwave ovens, and large metal objects away from the wireless headset.
The Bluetooth wireless headset does not need to be within direct line-of-sight of the phone. However, some
barriers, such as walls or doors, and interference from other electronic devices, can affect the connection.

Power Information

Use an Ethernet cable to connect your phone to your LAN and enable full functionality of your phone. If your
Ethernet port is equipped with Power over Ethernet (PoE), your phone can be powered through the LAN port.
Do not extend the LAN Ethernet cable outside the building.

Phone Behavior During Times of Network Congestion

Anything that degrades network performance can affect Cisco IP Phone voice and video quality, and in some
cases, can cause a call to drop. Sources of network degradation can include, but are not limited to, the following
activities:
• Administrative tasks, such as an internal port scan or security scan
• Attacks that occur on your network, such as a Denial of Service attack

FCC Compliance Statements

The Federal Communications Commission requires compliance statements for the following:

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.
Cisco IP Phone 8800 Series User Guide
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Product Safety and Security