Answer:
This is most likely an example of Objective control.
Step-by-step explanation:
Objective control, is a process by wich a company uses observable meassures in order to follow the working processes of their employees. It works with the objective of assess the conduct of the employees, for instance their productivity.
In this case the companay installing chips in order to see if the calls their employees make are not personal, this is a way of controling that the empoyees are doing their job.