Telecommunications networks; Telecommunications apparatus for transferring data to computers; Telecommunications apparatus for interfacing purposes; Telecommunications apparatus for diagnostic purposes; Telecommunications alarm apparatus; Apparatus for telecommunications engineering; Computer programs for the control of telecommunication apparatus; Computer programs for use in telecommunications; Digital telecommunications apparatus; Digital telecommunications instruments; Memory apparatus for telecommunications network management; Programmable telecommunication apparatus

Communication of data by means of telecommunications; Data transmission services over telecommunications networks; Digital network telecommunications services; Providing telecommunications connections to a global computer network; Telecommunications routing and junction services; Telecommunications security (providing secure connections and access including to computers and a global computer network); Telecommunications services for the distribution of data