Cisco 500 Series Handbuch - Seite 16

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Cisco 500 Series Handbuch
Audio Quality
You can use only one headset at a time. The most-recently connected headset is the active headset.
For a list of suggested headsets and other audio accessories, see
unified-communications/uc_endpoints_accessories.html.
Related Topics
Audio Quality
Beyond physical, mechanical, and technical performance, the audio portion of a headset must sound good to
the user and to the party on the far end. Sound quality is subjective, and we cannot guarantee the performance
of any headsets. However, various headsets from leading headset manufacturers are reported to perform well
with Cisco IP Phones.
For additional information, see
accessories.html
Wired Headsets
A wired headset works with all Cisco IP Phone features, including the Volume and Mute buttons. These
buttons adjust the earpiece volume and mute the audio from the headset microphone.
When you install a wired headset, make sure you press the cable into the channel in the phone.
Caution
Failure to press the cable into the channel in the phone can lead to cable damage.
Bluetooth Wireless Headsets
Cisco IP Phone 8845, 8851, 8861 and 8865 support Bluetooth. For a list of supported third party headsets,
see http://www.cisco.com/c/en/us/products/unified-communications/uc_endpoints_accessories.html.
Bluetooth enables low-bandwidth wireless connections within a range of 66 feet (20 meters). The best
performance is in the 3- to 6-foot (1- to 2-meter) range. Bluetooth wireless technology operates in the 2.4
GHz band, which is the same as the 802.11b/g band. Interference issues can occur. We recommend that you:
• Use 802.11a, 802.11n, or 802.11ac that operates in the 5 GHz band.
• Reduce the proximity of other 802.11b/g devices, Bluetooth devices, microwave ovens, and large metal
The Cisco IP Phone uses a shared key authentication and encryption method to connect with headsets. The
Cisco IP Phone can connect with up to 50 headsets, one at a time. The last connected headset is used as the
default. Pairing is typically performed once for each headset.
After a device is paired, the Bluetooth connection is maintained as long as both devices (phone and headset)
are enabled and within range of each other. The connection typically reestablishes itself automatically if either
of the devices powers down then powers up. However, some headsets require user action to reestablish the
connection.
The Bluetooth icon
Headsets
16
Accessory Support
https://www.cisco.com/c/en/us/products/unified-communications/uc_endpoints_
objects.
indicates that Bluetooth is on, whether a device is connected or not.
http://www.cisco.com/c/en/us/products/
Headsets