Mobile advertising in India has significant potential given there are over 750 million mobile subscribers and 9 billion calls made daily. Ringa Communications leverages this opportunity by delivering mobile advertisements via ring-back tones (RBTs), called AdRBT, which can reach over 900 million users across India. Advertisers pay only for valid ad impressions with Ringa's mobile advertising solution. It guarantees reach across networks and allows capturing user feedback. Ringa provides detailed reporting and targeting capabilities to help advertisers launch new products and increase sales via mobile RBT advertising in India.