ALESTRA

Computer installation and repair; installation of computer networks; installation of computer systems; maintenance of computer hardware

Telecommunications services, namely, long distance and international voice, text, facsimile, video and data communications services; frame relay telecommunications services; telecommunications network planning, management and support services; virtual network telecommunications services; electronic mail and voice mail and messaging services ; packet services; computer aided transmission of messages and images; audio and video teleconferencing services; private line voice, text, facsimile, video and data telecommunication services; Integrated Services Digital Network (ISDN) telecommunications services; transmission of voice, text, facsimile, video and data via satellite, terrestrial and undersea telecommunications links; television transmission services; 800 telecommunications services; 900 telecommunications services; switched voice data, video and multimedia services; Asynchronous Transfer Mode (ATM) services