ring-around

ring-around

[′riŋ ə‚rau̇nd]
(communications)
Improper routing of a call back through a switching center already trying to complete the same call, thus tying up the trunks by repeating the cycle.
Oscillation of a repeater caused by leakage of the transmitter signal into the receiver.
References in periodicals archive ?
In the Hubble study, Ardila's team used the observatory's Advanced Camera for Surveys to image a disk--more like a fat ring-around the young star HD 107146, 88 light-years from Earth.
Landlords will use a ring-around system to tip each other off about troublemakers who would otherwise move from pub to pub.
The scheme includes a ring-around system which will prevent troublemakers simply moving from one place to another.