Security is one of the most desired aspect of wireless communication networks. To maintain the confidentiality and enhance security of ongoing conferences at government level; complete breakdown of communication is required between wireless devices. This project aims at fulfilling the need of this confidentiality at higher level through the implementation of Denial of Service (DoS). Range of DoS was increased several times the practical jammers that are commercially available in the market with reduced cost in the design. Traffic analysis was done and suitable jamming technique was applied that is not detectable at user end. The main advantage of project was the feature of SELECTIVE JAMMING that is not available in commercial jammaers. To avoid an IED being triggered through a GSM network can be handled by DOS cloud in a sensitive area without generating very high jamming signals.