To clear the Call log

Clearing the Call log all at once

Tap the Phone Key (in the Quick Keys bar), then the Call logs tab at the top of the screen.
Tap the Menu Key .
Tap Clear all > OK.

Selectively clearing the Call log

Tap the Phone Key (in the Quick Keys bar), then the Call logs tab at the top of the screen.
Tap the Menu Key .
Tap Clear and then checkmark the call entries you want to delete.
Tap Clear > OK.

NOTE

You can also selectively delete by tapping and holding a Call log entry, then tap Clear all logs of this number > OK.