Acoustic Clarity Technology:
This Polycom patented technology allows you to enjoy instantaneous natural conversation. When paired with a full duplex speakerphone, echo is eliminated and both callers are able to speak simultaneously.

Analog:
Analog is the original telephone technology, a system that converts air vibrations (like those created by the human voice) into similar electrical frequencies. Analog lines can support phones, fax machines, and modems and are typically found in homes or small office settings.

Cardioid Microphones:
A cardioid microphone, the most popular for conferencing systems, picks up sound/signals primarily from the front of the microphone.

ECHO Cancellation and Suppression:
With the cancellation and suppression processes, information is only sent across the line when someone is actually speaking, so when a person stops talking the signal is cut off.

Full Duplex Operation:
The full duplex feature allows simultaneous flow of audio signals between your conferencing phone and that of the outside caller.