Final answer:
The oral testimony taken before a court reporter is called court testimony or witness testimony and plays a crucial role in establishing the facts of a case.
Step-by-step explanation:
The oral testimony that is taken before a court reporter is called court testimony or witness testimony. During a trial, witnesses are called to provide their testimonies, which can help establish the facts of the case. Testimonies are subjected to cross-examination to test their credibility and accuracy. It is an essential part of the legal process to gather information and evidence to make informed decisions.