See clip.

Synonym departure angle.

1. In INFOSEC, penetration or modification of internal operations, or the insertion of active or passive tapping mechanisms, to determine the nature of, or monitor or record , e.g., secret data. [After X9.24]
2. Unauthorized modification altering the proper functioning of INFOSEC equipment. [INFOSEC-99]
3. Unauthorized modification of sensitive systems or sensitive information.

1. Pertaining to an arrangement or sequencing of networks, circuits, or links, in which the output terminals of one network, circuit, or link are connected directly to the input terminals of another network, circuit, or link.
Note: For example, concatenated microwave links constitute a tandem connection.
2. A switching system in the message network that establishes trunk-to-trunk connections. Tandems may… (Read More →)

The general areas served by the local offices having direct trunks to or from the tandem office. This area may consist of one or more communities or may include only a portion of a relatively large city. [47 CFR Pt.36-A]

In a switched public telecommunications network, a facility that connects trunks to trunks and does not connect any local loops.

A general classification of circuits or trunks between a tandem central office unit and any other central office or switchboard. Synonym tandem trunk. [47 CFR Pt.36-A]

A call switched at a tandem office. [47 CFR Pt.36-A]

A central office unit used primarily as an intermediate switching point for traffic between local central offices within the tandem area. Where qualified by a modifying expression, or other explanation, this term may be applied to an office employed for both the interconnection of local central offices within the tandem area and for the interconnection of these local offices with… (Read More →)

An arrangement that permits sequential connection of tie trunks between PBX and Centrex® locations by using tandem operation.
Note: Tandem operation permits two or more dial tie trunks to be connected at a tandem center to form a through connection.