In a communications network, a service feature that provides basic data on the amount and type of traffic handled by the network.

A term applied to the routing of traffic and denoting routing via principal route for traffic between any two points as distinguished from alternate routes for such traffic. [47 CFR Pt.36-A]

1. That condition wherein the traffic offered to a portion of a communication system exceeds its capacity and the excess may be blocked or may be provided with alternate routing.
2. The excess traffic itself.

1. In COMSEC, a countermeasure that generates spurious data in transmission media to make traffic analysis or decryption more difficult. [2382-pt.8]
2. In reliability techniques, see pilot-make-busy circuit.
3. Generation of spurious communications or data units to disguise the amount of real data units being sent. [INFOSEC-99]
4. The generation of spurious instances of communication, spurious data units and/or spurious… (Read More →)

See register.

A stored program electronic system associated with one or more toll switching systems which provides centralized traffic service position functions for several local offices at one location. [47CFR part 67, Appendix. ]

Synonym erlang.

A device for measuring and recording the amount of telephone traffic carried by a group, or several groups, of switches or trunks.

1. The protection resulting from features, inherent in some crypto-equipment, that conceal the presence of valid messages on a communications circuit; normally achieved by causing the circuit to appear busy at all times. [After JP1]
2. Measures used to conceal the presence of valid messages in an on-line cryptosystem or secure communications system. [INFOSEC-99]
Note: Encryption of sending and receiving… (Read More →)

Protocol control information located at the end of a protocol data unit (PDU).