Glossary

Bonding*

Bonding is one of the Inverse Multiplexing methods allowing the connection of the videoconferencing system with multiple ISDN lines. Dialing the first ISDN line enables you to connect all other lines. Dialing the second and later lines is done automatically by the communication between the videoconferencing systems on both sites. To use bonding, it is required that both videoconferencing systems be equipped with the bonding function and that “Area Code” and “Local Number” in the ISDN Setup menu of the answering site be set correctly. As the communication between the systems when using the bonding function is made via the ISDN numbers of the answering site, the “Area Code” and “Local Number” settings in the ISDN Setup menu are not essential at the dialing site.

*Bonding (Bandwidth on Demand Interoperability Group) is a registered trademark of THE BONDING CONSORTIUM.

BRI

An abbreviation for Basic Rate Interface. Basic interface standardized by the ITU-T. Single ISDN has two B channels and one D channel.

CIF

An abbreviation for Common Intermediate Format. This format allows communication between different color systems (NTSC and PAL).

352 pixels × 288 lines

Codec

An abbreviation for Coder-Decoder. An integrated device of a coder that converts an analog audio/video signal to a digital data stream and compresses it, and a decoder for expanding to restore the original analog signal.

DHCP

An abbreviation for Dynamic Host Configuration Protocol. Manages IP addresses in the network.

DNS

An abbreviation for Domain Name System. Defines the domain name system.

Echo Canceler

Device to eliminate echo that occurs when transmitting audio.

Frame rate

The number of frames which can be encoded/decoded in one second.

224 Glossary