Full-duplex Audio Conferencing Speakerphones

A properly chosen and configured full-duplex conferencing endpoint will ensure that high-quality audio is captured at the endpoint even when the room is reverberant or contains noise sources like a projector, HVAC noise, outside traffic, etc. 

Audio conferencing endpoints can be categorized as personal conferencing devices, tabletop conference speakerphones, and professionally-installed conferencing systems. Personal conferencing devices include one or more microphones, a speaker, and signal processors.

They are designed to be used by a small group of people (one to four). Tabletop conference phones have a built-in speaker that can produce a higher sound output volume than the personal conferencing products, and they may also support expansion of the microphone pickup area through the use of expansion microphones or attachment of conference phones. 

Professionally installed audio systems offered today support arrays of microphones that can be placed around a large conference table to handle large groups of participants. The microphones used by professionally installed systems are generally permanently installed in the conference table or on the ceiling. 

There are also wireless microphone systems that are designed to use with professionally installed audio conferencing systems.