Nowadays, the network maintenance cost, especially in the rural areas, is comparatively high for telecommunication- corporations. According to the utilization reports of telecommunication networks, the subscriber usage of access network in urban areas is several times more than in rural. From this point of view, reducing the cost of maintaining networks of rural areas and providing the cost-effective telecommunication networks brook no delay. A solution derived from Zone-based MVPN is implemented to obtain the objective of reducing maintenance cost of rural areas. It uses the Intelligent Networks (IN) to implement such location-based services. We try to use the mobile phones as an alternative of PSTN phones in rural areas. By adding some IN technologies, the user can obtain an acceptable PSTN-like service by using only the mobile phones. Besides, the charging for calling is also PSTN-like by using the IN technology. We will find that this service provides seamless telecommunication networks to subscribers.