38 telecommunication services, namely, telephone communication services, cellular telephone communication, teletext communication, communication by computer terminal, reception and sending telegram and facsimile, radio and telephone paging services, voice mail services; rental and leasing of telephone apparatus; integrating services in the video and vocal data transmission, namely, video teleconferencing coupled with electronic transmission of data; telephonic services of exchange installed also on automatic recalls system, namely, private automatic exchange (PAX), private automatic branch exchange (PAXB), private manual exchange (PMX), private manual branch exchange (PMBX), and private branch exchange (PBX)