The correct answer to this open question is the following.
In the analog age, PR practitioners, unconcerned with brand strategy or other aspects of advertising, dealt primarily with media relations.
A public relations professional based its job in the daily relationship with mass media reporters, the elaboration of press bulletins, the organization of Press Conferences or personal interviews with TV and Radio stations, to answer media inquiries, and to collect important information from the company or the client to send it to media slots.