You are often confused by the caller or the caller dark you do not know his identity? If you have experienced a little discomfort because the phone kept ringing and you do not know who's calling, then you try to install the application No 1 Caller Look Up is on your BlackBerry device. No 1 Caller Look Up is currently the best application you can use to find out who is calling you even if the caller is not in the contact list on your BlackBerry.
And not just to find the identity of the caller, the No. 1 Caller Look Up also allows you to synchronize your phone book and it will automatically display the Facebook profile photo if the caller has a facebook account and you enter in the identity of the caller. And not just looking for call identity, this app also allows you to block calls from phone numbers that you want, and once you will automatically send a message to your mail voices.
The application is available for free in BlackBerry AppWorld, and walked almost all types of BlackBerry, with a minimum required OS BB OS is version 4.5.0.