1. In cryptosystems, the denial by one of the entities involved in a communication of having participated in all or part of the communication.
2. Denial by one of the entities involved in a communication of having participated in all or part of the communication [7498-2].

A signal from a network in response to an access request, indicating the network's readiness to accept address information. [T1.507-1996]

A signal sent by the DTE to the DCE to request the establishment of a data connection.

A signal from a receiver to a transmitter asking that a message be transmitted again. [From Weik '89]

A signal that is generated by a receiver in order to condition a remote transmitter to commence transmission. [From Weik '89]

See click-through.

1. Radiation, at the same or different wavelengths, i.e., frequencies, of energy received from an incident wave.
2. Undesirable radiation of signals locally generated in a radio receiver.
Note: Radiation might cause interference or reveal the location of the device.

Recommencement of route selection from the first point of routing control, when congestion is encountered at some intermediate switching point in the connection that is to be established.

A company that redistributes the services of a commercial carrier and retails the services to the public.

In FCC deliberations and rulings, the right of a buyer of basic telecommunication services, such as private lines, foreign exchanges, or WATS, to resell and/or share with others the unused capacity.