You can delete all call records from your call log.
1.Access the call log.
a.Press the CALL LOG or HISTORY button.
b.The display will change to show your call log records. The caller's name is shown if known, otherwise the number.
c.Use the up and down arrow keys to scroll through the records.
2.Press the More soft key.
3.Press the Del All soft key to delete all your call log records.