we all have caller/hello tune on mobile. a tune which person hears when he dials a number.
imagine, pepsii company will pay the receiver or that service provider upon playing the audio advertisement.
hence whenever person A calls person B,, person A will hear pepsii jingle song as a tune instead of "tring tring".
pepsi inturn will pay the receiver(person B) or (service provider of person B eg airtell) in form of increased talk time, not charging for that call etc.[or pepsii will pay to the airtell & airtell will inturn pay to the person B
by this all will get benefitted
