Originally Posted by JSanders
Method 1. On your 8310 > Options > Security > General Settings > press the Menu key > Wipe Handheld. Follow the prompts. This will remove all personal information such preferences, calendar, Call logs, address book, mail and messages, etc.
Method 2. Use JL_Cmder. Check our FAQ site (link above on the top menu bar) for instructions.
Thanks JSanders, but I ONLY want to delete the Call Logs and preserve everything else. From reading the FAQ it looks as if both methods delete everything or I have overlooked something.