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Nokia number book

Posts: 6

Nokia number book

I have install the nokia number book application in my cell few days ago and I am just curious about the data source I mean whatever number you enter in this application it gives you the owner name so I want to know from where this application is getting data ? Can anyone explain ?

Mobile Overlord
Posts: 20,383

Re: Nokia number book

[ Edited ]

Its thru' their own database. When you install this application on your device, it records ALL contacts from your phone in its own database..similarly it does for all users. when a call is received or dialled to unknown no. the application searches the database and if found, it will display the contact. There may be cases where the no. is not in the database and it will not return any results ...More and more users..and the database will grow and there are more chances of it providing the details ..

Truecaller is another such application. You may read its FAQ section to get some idea how it works.. This is just for reference as could not find such documentation related to the subject application ...