Audio Quality; Analog Headsets - Cisco 6800 Series Administration Manual

Audio Quality

Environmental and hardware inconsistencies in the locations where Cisco IP Phones are deployed mean that
no single headset solution is optimal for all environments.
We recommend that customers test headsets in the intended environment to determine performance before
making a purchasing decision to deploy on a large scale.
You can use only one headset at a time. The most-recently connected headset is the active headset.
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

Analog Headsets

The phones support analog headsets that you plug into the headset port of the phone. The phone automatically
detects the headset.
Cisco IP Phone 6800 Series Multiplatform Phones Administration Guide
108
https://www.cisco.com/c/en/us/products/unified-communications/uc_endpoints_
Phone Accessories