The Telecommunications (Interconnection) (Number Portability, etc.) Regulations 1999
These Regulations amend the Telecommunications (Interconnection) Regulations 1997 and the Telecommunications (Licence Modification) (Standard Schedules) Regulations 1999 in respect of the number portability conditions contained in the licences granted under section 7 of the Telecommunications Act 1984 for the running of public telecommunications systems and also impose the number portability obligations in these Regulations on systemless service providers.