Mobile Phone or Cell Phones is wireless alternate of landline and cordless phones having very wide range of global connectivity through network of service provider. Today's mobile handsets are full of wide range of features and applications for personnel and business use. Presently there are more than 6,800,000,000 mobile phone handsets worldwide. Top contributors are China 1,230,000,000+, India 910,000,000+, USA 328,000,000 followed by Brazil, Russia and Indonesia.