11.—(1) This regulation relates to outgoing calls on a line.
(2) The relevant telecommunications service provider shall ensure that a user originating a call has, subject to regulations 13 and 14, as respects that call, a simple means to prevent, without charge, presentation of the identity of the calling line on the connected line.
(3) The relevant telecommunications service provider shall ensure that a subscriber has, subject to regulations 13 and 14, as respects his line and all calls originating therefrom, a simple means to prevent, without charge, presentation of the identity of his line on any connected line.