continuity call
n.— «One of the work rules that management is eager to change involves what is known as the continuity call. A continuity call happens when the stagehands who are working on a running show are called for an hour’s work before or after a performance to do work relating to that performance. Any work that goes beyond that hour requires a costly four-hour work call.» —“In Broadway Dispute, Questions of Fairness” by Steven Greenhouse, Campbell Robertson New York Times Nov. 25, 2007. (source: Double-Tongued Dictionary)