Informasi tentang telekomunikasi (Information about telecommunication), Jasa kawat (Wire services), Jasa ruting dan pencabangan telekomunikasi (Telecommunications routing and junction services), Pengiriman pesan (Message sending), Pengirlman telegram (Transmission of telegrams), Penglriman pesan dan gambar dengan bantuan komputer (Computer aided transmission of messages and images), Penyediaan sambungan telekomunlkasi ke jaringan komputer global (Providing telecommunications connections to a global computer network), Penyiaran radio (Radio broadcasting), Penyiaran televisi kabel (Cable television broadcasting), Penyiaran televlsi (Television broadcasting), Transmisl satelit (Satellite transmission)