The similarity is around control of the workers time in a 'production line' fashion. (I have also worked in a factory on a line). You're correct about the orig

The similarity is around control of the workers time in a 'production line' fashion. (I have also worked in a factory on a line). You're correct about the origin of the term now collar. In places where deindustrialization has cleared out most production jobs, call center work is one of the things that replaced them.