Signaling that ensures error-free transmission of dialed information by returning a unique digit-dependent signal from the far end as each digit is sent over a trunk.

In facsimile, a signal from a CCITT Group 1, 2, or 3 facsimile receiver, indicating it is ready to receive picture signals.

A test performed by an independent body to determine if a particular piece of equipment satisfies the criteria in a specified controlling document, such as a Federal standard, an American National Standard, a Military Standard, or a Military Specification.

1. In a communications switch, a state or condition that occurs when more subscribers attempt simultaneously to access the switch than it is able to handle, even if unsaturated.
2. In a saturated communications system, the condition that occurs when an additional demand for service occurs.

A local variable of a node that indicates the number of blocks to be dropped from packets containing droppable blocks (0, 1, 2, or 3 blocks may be specified). [T1.312-1991]

An off-hook condition applied to the network interface (NI) by the network that indicated the network intends to complete a call attempt to the customer installation (CI) or intends to continue an established connection. [T1.405-1989]

The amount of time that a terminal (client) is being served by a network. [Bahorsky]
Note: Connect time can refer to either the total amount of time that the terminal is connected to the network or just the amount of time that the terminal actually transmits or receives data.

In the public switched telephone networks, the equipment provided by a common carrier to accomplish electrical interconnection between customer-provided equipment and the facilities of the common carrier.

1. A provision for a signal to propagate from one point to another, such as from one circuit, line, subassembly, or component to another.
2. An association established between functional units for conveying information.
3. A temporary concatenation of transmission channels or telecommunication circuits, switching and other functional units set up to provide a route for a transfer of information… (Read More →)

The set of functions used for setting up, maintaining, and releasing a communication path between two or more users or a user and a network entity, e.g., a dual-tone multifrequency receiver. [T1.667-1999]