AT&T DS1/DMi/ISDN-PRI manual Accunet, Adftc Afrl Aiod, Megacom

GLOSSARY

1s density

24th-channel signaling

800 service

access

ACCUNET ®

A C C U N E T® digital service

ACCUNET ® packet service

ACCUNET ®

reserved 1.5 service

A C C U N E T® T 1 service

ADFTC

AFRL

AIOD

alternate facilities restriction level (AFRL)

alternate voice/data (AVD)

ALU

American Wire Gauge (AWG)

See ones density.

Digital signal level 1 (DS1) signaling in which the signaling for each of the first 23 channels is multiplexed onto the 24th channel, thereby providing a full 64K- bps for user data on each of the first 23 channels. Also called alternate voice/data signaling, clear-channel signaling, and out-of-band signaling. See also common-channel signaling and Integrated Services Digital Network primary

rate interface.

A service that allows incoming calls to be made from certain geographical areas to an assigned number for a flat-rate charge based on expected usage. See also

MEGACOM ® .

In telecommunications, a call that is completed from a customer-premises location to the public network.

A trademarked name for a family of digital services offered by AT&T.

A digital service offered by AT&T that provides switched digital connectivity via the public network to allow pairs of compatible endpoints to exchange data, video, digital encrypted voice, and/or graphics at up to 64K-bps.

An X.25 packet-switching service provided by AT&T.

A digital service offered by AT&T that provides 1.5M-bps digital facilities between two or more specified points at scheduled times.

A digital service offered by AT&T that provides a dedicated 1.5M bps digital facility, using terrestrial channels and one of two specified signal formats.

See analog/digital-facility test circuit.

See alternate facilities restriction level.

See automatic identified outward dialing.

An assigned alternate number that reflects allowed access levels and determines both the kinds of calls that can be made and the kinds of facilities that can be used when accessing trunks via Automatic Alternate Routing (AAR). See also facilities restriction level.

A digital signal level 1 (DS1) trunk-facility translation that defines the use of that facility for either voice and voice-grade data or data protocol modes. See also

bearer capability class of service.

See arithmetic logic unit.

A numeric standard used to express the diameter of a wire. The higher the number, the smaller the diameter.

GL-1