(f) Where live Audiotext Hosting Services are offered, at least one adequately trained employee must be assigned and present at all times to moderate, facilitate and monitor the service to ensure that all activities within the service remain healthy. The service must provide facilities for the trained employee to immediately remove callers who misuse and abuse the service. 2.0 Specific Guidelines Rating Classifications 2.1 All Audiotext Hosting Services must be classified according to the following rating classification below and displayed clearly in all advertising materials. (a) "U" - Information or Entertainment services suitable for all ages. However callers below 18 years of age must obtain permission from the person making payment for the use of the Audiotext Hosting Services. (b) "18+" - Services for the general public 18 years and above. Specialist Information 2.2 "Specialist Information" is defined as information or advice provided by professionals, corporations, the government, government agencies or any other persons who is appropriately qualified or an expert or specialist in relation to the area of expertise. 2.3 Audiotext Hosting Service content containing professional advice or opinion (e.g. Medical/Dental/Legal/Financial Services) must ensure that: (a) The person is appropriately qualified in his area of expertise; (b) The advice is prefaced with a disclaimer that such advice should not be acted upon without first consulting a suitably qualified practitioner, and be conveyed in a manner that accurately reflects the seriousness of the subject matter; and (c) Any advice involving scientific, statistical or other research data must indicate clearly the source of such data. 54