(1) This regulation applies, subject to regulations 15 and 16, to outgoing calls where a facility enabling the presentation of calling line identification is available.
(2) The provider of a public electronic communications service shall provide users originating a call by means of that service with a simple means to prevent presentation of the identity of the calling line on the connected line as respects that call.
(3) The provider of a public electronic communications service shall provide subscribers to the service, as respects their line and all calls originating from that line, with a simple means of preventing presentation of the identity of that subscriber’s line on any connected line.
(4) The measures to be provided under paragraphs (2) and (3) shall be provided free of charge.