 Grey market Setup is the terminology being used in country like India for the arrangement of termination of International Long Distance Calls over internet using leaky PBX to India.There grey market setups are popularly known as illegal International Long Distance (ILD) telephone exchange.Voice calls can be compressed and packaged into voice-over-IP packets and sent over the public Internet or a more direct IP-based data link, thus by-passing the conventional telephone routes into a country.