c. 12 102 PART VII Telecommunications Act 1984 (4) Part III of Schedule 7 and section 109(6) so far as relating to that Part shall come into force on the dissolution of British Telecommunications. (5) Subject to subsections (2) to (4) above, this Act shall come into force on such day as the Secretary of State may by order appoint ; and different days may be so appointed for different provisions or for different purposes. (6) This Act extends to Northern Ireland.