37 Installation, repair and maintenance of telecommunications hardware, telecommunications apparatus, telecommunications networks and telecommunications systems; installation, repair and maintenance of computer hardware; underground construction of telecommunications hardware, telecommunications apparatus, telecommunications networks and telecommunications systems; maintenance of electrical and telecommunications facilities installed in buildings; installation, repair and maintenance of fibre optic and submarine cables; underwater construction and repair; machinery repair; consultancy, information and advisory services in the field of installation, repair and maintenance of telecommunications hardware, telecommunications apparatus, telecommunications networks, telecommunications systems, computer hardware, fibre optic and submarine cables, underground construction, maintenance of electrical and telecommunications facilities installed in buildings, underwater construction and machinery repair; provision of consultancy, information and advisory services in the field of installation, repair and maintenance of telecommunications hardware, telecommunications apparatus, telecommunications networks, telecommunications systems, computer hardware, fibre optic and submarine cables, underground construction, maintenance of electrical and telecommunications facilities installed in buildings, underwater construction and machinery repair online via the internet or other computer networks