I have received three calls from this number telling me that it is urgent that I contact them about credit card accounts. I am on a do not call list and resent the intrusion very much.
Call from CNAM, resulted in several seconds from the middle of a prerecorded message being recorded by my answering machine. I Googled CNAM and got some interesting results, when "telecom" is added behind CNAM. What little I could make out of the partial message, was "offering" me some kind of choice by pressing a certain number. More Telephone Trash. I get my money's worth from Caller ID. If I'm home when the phone rings, I check the Caller ID. If I don't recognize it, I don't answer it and hit the "Mute Ringer" button. If it IS someone I NEED to talk to, they'll leave a message and if I'm screening calls, I'll pick up. Otherwise, let them pay somebody to call a number that never answers.
I keep making Do Not Call complaints with polite notes asking that they investigate this repeat illegal caller and thanking them. Usually - after a while - the calls stop - for a while. Then when they start again it is from a different scammer. So I go through the whole procedure again. I think if everyone does this, it helps an understaffed office focus on the worst problems.