The subtending remote switching device that depends in part on its host switch for call control but is capable of providing intra-unit switching. [T1.508-1998]

The location at which there is a transition between a telecommunications carrier facility and the local lines serving the individual customers. [T1.313-1997]

Arrangement that permits the extension of TSPS functions to remote locations. [47 CFR Pt.36A]

A type of network element (NE) that contains a DUA (directory user agent), an optional local cache, and possibly other application processes such as the registration agent. The R-NE communicates with the DSA (directory system agent) via the DAP (directory access protocol). [T1.245-1997]

Acronym for ringer equivalency number.

A call-disposition category for a call processing failure. [T1.207-1998]

See busy signal.

Synonym ARQ.

1. An analog device that amplifies an input signal regardless of its nature, i.e., analog or digital.
2. A digital device that amplifies, reshapes, retimes, or performs a combination of any of these functions on a digital input signal for retransmission.
Note: The term "repeater" originated with telegraphy and referred to an electromechanical device used to regenerate telegraph signals. Use… (Read More →)

A voice-frequency transformer characterized by a closed core, a pair of identical balanced primary (line) windings, a pair of identical but not necessarily balanced secondary (drop) windings, and low transmission loss at voice frequencies.
Note: It permits transfer of voice currents from one winding to another by magnetic induction, matches line and drop impedances, and prevents direct conduction between the… (Read More →)