Has anyone else noticed that blocked caller ID's seem to come through as NO CALLER ID now on the 650?

I'm not 100% certain but I have a friend that always blocks his caller ID and since I got the T650 it shows up as NO CALLER ID, which is actually quite annoying since at least on the T600 I could tell the difference. 99% of NO CALLER ID calls tend to be tele marketing ****e :-(