Never mind - figured it out. Change the option to show phone calls in the message list if you haven't already. Go to the messages list, do a search to display only phone items, delete prior to today. Sorry for the wasted bits.
djl - not wasted bits. I've been trying to figure out how to clear the call history when in the phone application and your solution seems to help with that. Thanks.
Another way is to go under Desktop Manger - Backup/Restore - Advanced - look for phone logs (I erase my purged msgs this way too) - select it and hit clear - ok.