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External Devices
We recommend that you use good-quality external devices that are shielded against unwanted radio frequency
(RF) and audio frequency (AF) signals. External devices include headsets, cables, and connectors.
Depending on the quality of these devices and their proximity to other devices, such as mobile phones or
two-way radios, some audio noise may still occur. In these cases, we recommend that you take one or more
of these actions:
•
Move the external device away from the source of the RF or AF signals.
•
Route the external device cables away from the source of the RF or AF signals.
•
Use shielded cables for the external device, or use cables with a better shield and connector.
•
Shorten the length of the external device cable.
•
Apply ferrites or other such devices on the cables for the external device.
Cisco cannot guarantee the performance of external devices, cables, and connectors.
In European Union countries, use only external speakers, microphones, and headsets that are fully compliant
with the EMC Directive [89/336/EC].
Caution
Cisco IP Phone 6800 Series Multiplatform Phones Administration Guide
19
External Devices
Содержание IP Phone 6841
Страница 15: ...P A R T I About the Cisco IP Phone Cisco IP Phone Hardware page 3 Technical Details page 11 ...
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Страница 35: ...P A R T II Phone Installation Cisco IP Phone Installation page 23 Third Party Call Control Setup page 61 ...
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Страница 79: ...P A R T III Phone Accessories Cisco IP Phone Accessories page 67 Wall Mount Kit page 71 ...
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Страница 146: ...Cisco IP Phone 6800 Series Multiplatform Phones Administration Guide 132 Configure the XML Directory Service ...
Страница 147: ...P A R T V Phone Troubleshooting Monitoring Phone Systems page 135 Troubleshooting page 209 Maintenance page 221 ...
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Страница 222: ...Cisco IP Phone 6800 Series Multiplatform Phones Administration Guide 208 Cisco IP Phone Web Page ...