A set of knowledge is expounded aimed at introducing the key concepts related to telecommunication networks among the information specialists, as a way to improve the librarian culture in the field of new information technologies. This knowledge will contribute decisively to a more efficient use of the National Health Care System networks, based on the progressive development of an electronic information infrastructure that will allow the contact among the communication sector professionals and the exchange with the international scientific community, as well as a convenient and timely access to information.