At the present time the frequency spectrum has become of the most important natural resources that must be preserved, and in order to preserve this natural wealth, must know the optimal use and keep users from the presence of interference or overlaps.

Working with the wide area and local networks is a common practice nowadays in all respects.  Utilizing the Internet is a main support for all activities. Nevertheless, new technologies let in many hazards such as cybercrimes, unsolicited mail and indecent contents. NTC as a socially responsible regulator has to effectively deal with these threats and filtering morally indecent sites.