 For the effective enforcement of this responsibility, it adopts and promotes such guidelines, rules, and regulations relative to the establishment operation and maintenance of various telecommunications facilities and services nationwide.Although independent insofar as its regulatory and quasi-judicial functions are concerned, the NTC remains under the administrative supervision of the Department of Information and Communication Technology as an attached agency.However, with respect to its quasi-judicial functions, NTC's decisions are appealable only and directly to the Supreme Court of the Philippines.