In the digital world today, cellular networks and their operators play a competitive and important role in communications. The basis of the competition of operators, the quality of provided services, and the coverage level of their antennas, thereby attract customers. This paper studies cellular networks with two old and new operators and under the influence of government intervention in one area. Due to the high cost of building an antenna, the new operator participates in the cost of the infrastructure of the old operator to use the services of these antennas for their customers. On the other hand, the government considers incentive schemes to support mobile operators. The government plan is that he takes part in the infrastructure cost of the old operator and will receive it an income tax; to support the new operator declare it exempt from tax. The government subsidy contract with the old operator is based on the coverage level of the antenna and supports the operator to increase the coverage level. Some numerical examples for Iranian telecommunication companies are applied to examine the applicability of the proposed models. Finally, sensitivity analysis on the main parameters is analyzed in-depth to extract some managerial implications.