Chapter 1 - About this Manual

ARJ

H.323 Admission Reject Message. This message is

 

from the Gatekeeper, rejecting the endpoint’s

 

request to connect to another endpoint.

ARQ

H.323 Admission Request Message. This message

 

is from an endpoint to the Gatekeeper requesting

 

a connection to another endpoint.

Automatic

A feature on Polycom ViewStation® systems that

Voice Tracking

allows the camera to point toward the person

 

speaking.

B channel

Bearer channel. B channels carry audio and video.

Bandwidth

The data-carrying capacity of a network

 

connection, given in terms of speed. For example,

 

an Ethernet link is capable of moving 10 million

 

bits of data per second. A Fast Ethernet link can

 

move 100 million bits of data per second – it has 10

 

times more bandwidth.

Bonding Calls

In ISDN BRI and PRI transmissions, bonding

 

refers to joining two or more B channels together

 

to get one channel whose bandwidth is equal to

 

the sum of the bonded channels’ bandwidths.

 

Using a Quad BRI interface, up to 8 channels may

 

be bonded. T1 allows up to 23 channels to be

 

bonded, and E1 allows up to 30.

BRI

ISDN Basic Rate Interface. Provides two B

 

channels and one 16 Kbps D channel (2B+D) for a

 

total of 144 Kbps, 128Kbps of which is available

 

for the audio and video content of the call.

Bridge

A device that passes packets between network

 

segments that use the same communications

 

protocol. If a packet’s destination is within the

 

sender’s own network segment, the bridge keeps

 

the packet local. Otherwise, the bridge passes the

 

packet to the network backbone. Also, in

 

videoconferencing, a Multipoint Control Unit. See

 

MCU.

Broadcast

A one-to-many transmission that can be received

 

by anyone connected to the network.

© Polycom, Inc.

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Polycom EX, FX, VS4000, EX4000, FX4000, VS4000 manual Arj

EX, FX, VS4000, EX4000, FX4000, VS4000 specifications

Polycom is a leading name in video conferencing and collaboration solutions, and their product line, including the EX4000, FX4000, and VS4000, exemplifies their commitment to delivering high-quality communication experiences. Each of these systems is designed to meet specific needs in the realm of video conferencing.

The Polycom EX4000 is a powerful video conferencing solution tailored for small to medium-sized conference rooms. One of its main features is the use of High Definition (HD) video, ensuring that participants enjoy clear and lifelike video in every meeting. The EX4000 is equipped with the Polycom HDX technology that enables 720p resolution, ensuring that visual detail is crisp and clear. Additionally, it incorporates advanced audio technologies such as Polycom StereoSurround, which enhances the audio quality by providing a more immersive experience, making remote participants feel as if they are in the same room.

The Polycom FX4000 builds on the capabilities of the EX4000 but is designed for larger conference rooms and more complex environments. Its main distinguishing feature is the support for multiple camera angles and layouts, allowing for a more dynamic video conferencing experience. The FX4000 supports 1080p HD video, ensuring the highest video quality for large meetings. Also equipped with the latest in noise-blocking audio technology, the FX4000 minimizes distractions and enhances the clarity of conversations, which is essential in large groups where sound can become muddled.

The Polycom VS4000 provides advanced video conferencing capabilities for larger organizations with a focus on scalable solutions. It includes features such as secure multipoint video conferencing, allowing multiple locations to connect seamlessly. The VS4000 uses the Polycom Converged Conference control, which simplifies meeting management, allowing users to initiate and manage calls with ease. The VS4000’s ability to integrate with various communication and collaboration tools makes it a flexible choice for organizations looking to enhance their communication capabilities.

Overall, the Polycom EX4000, FX4000, and VS4000 represent a powerful trio of tools in video conferencing technology, each with unique features that cater to varying organizational needs. With high-definition video, advanced audio technology, and flexible integration options, these systems exemplify quality in collaborative environments, helping businesses connect better and foster teamwork, regardless of distance.