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In this paper, we present a novel application for subsidizing the cost of SMS-based messaging, especially in mobile operator networks which have started showing the ldquointentional missed callrdquo phenomenon. The existing SMS infrastructure is augmented with an advertisement capability, borrowed from the Internet model to either subsidize the cost of or even provide a credit to the SMS originating User. In addition to user-to-user messaging, this application can also find acceptance in small and medium sized enterprises, which rely on SMS-messaging to reach their consumers. We describe an overall architecture for the proposed Zero-Cost Negative-Cost (ZCNC) mobile messaging, with related discussion on itpsilas different usage scenarios.