
According to the latest report from ITU (International Telecommunication Union) the worldwide mobile subscriber base stands at 4.1 billion (of which India accounts for almost 10% at 403.66 million at the end of April 2009) while fixed-line subscriber base at 1.27 billion. With dropping call rates and booming mobile telephony market we have to bear the burnt of getting lots of unwanted calls and missed calls.Sometimes we cannot even identify which country the missed call is from (except of course the ones from our home country and a few others for which we know the international dialing code). Then how do we find it?Centralized databaseThere is...