here is a way, how to delete all call logs without any payd soft:
Just delete this file, reboot device and uuuallia your call log is empty.
You can save also this old data by renaming original file.
By this method also I found, that calls lifetime was resets too! It mean, you can sold your phone like new.
Last edited by vidmazas; 3rd May 2012 at 06:30.