It has been established that despite the global trends, in Ukraine, the number of subscribers to services of mobile operators reduced. In order to strengthen the competitive position of mobile operators it is proposed to increase the level of the services provided in customer service centers, based on the evaluation of their current level. The research proved that special attention should be given firstly to the reduction of the waiting time of customers, to the increase of the speed of service provision as well as professionalism of the employees, providing consultation services.
To meet the put forward contradictory technical and economic demands to the structure of transmission networks it is necessary to use multi-criteria optimization methods when planning them. During our planning of a transmission network we design such a topology that has to provide high quality and sufficient reserve capacity at least costs. In practice it means that the designer must balance three transmission network quality factors, which characterize the cost, the quality and the capacity.