Android :: Updating The Call Log

I'm trying to update the CalLog to change the name/cached name of an entry. I have successfully updated a row but once i go into the call log on my phone the displayed name is removed after a short moment. I figured this is because the number of the incoming called is not found in any of the contacts. But why would it then clear the cached name that is in the Log? If the number is not in contacts the call log should display the cached name without trying to refresh it? At least that's the behavior I expect.My question is: Is it possible to add a name to an incoming number to display in the call log without adding the number and name to the contact list? I've figured it should be possible to add the contact first, then mark it as removed and thus get it displayed in the call log but that seems like a stupid work-around.