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 →)

In teletypewriter systems, a device used to punch a tape in accordance with arriving signals, permitting reproduction of the signals for retransmission.

A telephone set that stores a group of numbers frequently called by a customer and transmits the dialing information to the central office by a single action.

Refers to a telecommunications carrier that receives numbering resources from the NANPA, a Pooling Administrator or another telecommunications carrier [that must submit an NRUF]. (FCC 00-104, §
5
2. 15 (f) (2)).

Synonym precision.

In computer and telecommunications systems, a fault that will occur each time the set of conditions causing the fault occurs.
Note: The conditions under which the fault occurs and the precision with which the fault occurs must be specified when determining the reproducibility of a fault.

1. In facsimile systems, the rate at which recorded copy is produced.
Note: The reproduction speed is usually expressed (a) as the area of recorded copy produced per unit time, such as square meters per second or (b) as the number of pages per minute.
2. In duplicating equipment, the rate at which copies are made.
Note: The reproduction speed… (Read More →)