(1) The per call charges, or, if the call is billed on a usage-sensitive basis, the rates by minute or other unit of time, any minimum charges, and the total cost for calls to that service if the duration of the service can be determined;
(2) Any geographic, time-of-day, or other limitations on the availability of the offer;
(3) A requirement that callers under eighteen (18) years of age must request parental or adult guardian permission before calling to hear the offer;
(4) Display of the charges in broadcast advertising with the telephone numbers and a voice announcement of the charges during the course of the commercials;
(5) Repeated voice announcements of these charges at regular intervals for commercials in excess of two (2) minutes; and
(6) Charges for all subsequent calls if the program refers to and requires another pay per call.