Key Term Definitions
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 without experiencing voice dropouts. The voice clarity on conference systems that feature this technology is incredibly crisp and clear.
Dynamic Noise Reduction:
One of Polycom's signature features, Dynamic Noise Reduction (DNR) eliminates the unwanted background noise that plagues more traditional conferencing methods. This technology was first introduced in the 1980's and targeted noise reduction in long distance communications. DNR can cut down clatter by as much as 10 decibels and can be paired with similar systems. The Polycom systems that carry this feature provide the user with optimum microphone sensitivity while removing dynamic noise. DNR can really make a difference when conferencing with client's long distance, the level of professionalism will be much appreciated.
Full Duplex Operation:
The full duplex feature allows simultaneous flow of audio signals between your conferencing phone and that of the outside caller. Polycom systems carry a full duplex speakerphone, which can transmit and receive audio signals at the same time, in both directions.
All microphones have directional characteristics, which are determined by the way a microphone picks up sounds. Microphones can pick up signals from several directions or from one focused point. A cardioid microphone, the most popular of conferencing systems, picks up sound/signals primarily from the front of the microphone. When the pattern of cardioid sound pickup is graphed the shape resembles that of a heart, hence the name. These microphones focus on the sound in front of them and lessen ambient noise from the back or sides.
Intelligent Microphone Mixing:
This feature can be found in the Polycom extension microphones line, a great tool when conferencing with multiple people in the room. The intelligent microphone mixing technology makes it so the only microphone turned on for clear conferencing is the one closest to person speaking. Why have microphones that are not in use turned on, this only creates unwanted, static noise that interferes with communication. This intelligent Polycom feature eliminates the guessing game that comes with finding the correct microphone, simply start speaking and the system will recognize which device to turn on.
A digital, private branch eXchange (PBX) system connects the internal telephones of a private business. The job of a PBX is to maintain and establish a link between two users, disconnect the users and meter the call. These systems are meant for use in the workplace, not at the level of public phone companies or service providers. Every telephone in the business is wired to the PBX system; this is why an access code is required to dial outside numbers. With a digital PBX system a business can drastically reduce the number of telephone lines they must lease from a national service provider.