This research article describes about the voice call transmission among WiMax coverage area. The theme of this work is to obtain better voice clarity than mobile communication networks. The objective of fourth generation networks is to provide larger coverage, low power handling of base stations and good compatibility. Similarly, this work examines the best voice clarity with reliable quality of network management in the LTE streaming coexisting standards. It offers comparative analysis of the two scenarios. They are the different coverage locations (50x50 km and 100 X 100 km), a large number of mobile users, same configuration of connection setup with devices and the diverse interference among users. Finally the high coverage area has achieved the results better than lower coverage region.