Mobile banking, mobile payment, mobile learning and etc are common services in mobile network.
There are three business roles in mobile network: mobile network operator, content provider, service provider. Mobile network operators have offered value added services for attract new customer and keep the existing customers. Subscribers can use many services and contents.
Different factors have affected in call cost and send/receive cost of SMS or MMS. The international call delivery cost in GSM network is very expensive because two international calls are occur. Suppose that a person A from country X roams to country Y. person B from country X calls the person A. In this scenario the person A is charged for an international call from country X to country Y and the person B is charged for a local GSM call. Another scenario is if person C from country Z calls the person A, the result is two international calls. The person C is charged for an international call from country Z to country X. the person A is charged for an international call from country X to country Y. call cost reduction is considered from two perspectives. The first: making change in infrastructure of mobile network operator. The second: considering efficient factor in subscriber side call cost. The factor that affected call cost, send/receive SMS or MMS cost of subscriber side include the following: day of week (weekdays or weekends), time of day (peak or off-peak), special events such as discount in call cost due to new year’s event, location like discount if contact is made from special locations or discount in roaming cost in some countries, membership in group, type of SIM card (pre-paid or post paid), recharge option of SIM