Conducting technical project studies; Research in the field of telecommunications technology; Design of telecommunications apparatus; Telecommunications technology consultancy; Computer software design; Electronic data storage; Development of computer platforms; Telecommunication network security consultancy; Software engineering services for data processing; Writing of computer code

Message sending; Transmission of telegrams; Rental of message sending apparatus; Communications by fiber optic networks; Rental of facsimile apparatus; Rental of modems; Rental of telecommunication equipment; Rental of telephones; Satellite transmission; Electronic bulletin board services (telecommunications services)

Optical communications instruments; Communication modems; Lasers, not for medical purposes; Apparatus for network communication; Detectors; Chips (integrated circuits); Integrated circuit boards; Integrated circuits; Computer chips; Computer network routers