No CID, no message.
Did not answer and it left no message.
If you dont recognize the name/number, DO NOT ANSWER. If you happen to answer, DO NOT RESPOND IN ANY WAY. After all, they are scammers and you dont really know what you answered or consented to do or buy.
Scamming and phishing only works if there is a market. A legitimate caller will be identified, will leave a name, message and call back number, giving you the option to respond.
I wish all the TV stations would run programs at prime times on scams and cautions; how to report and deal with them. That would be public service in public interest, and hopefully, make these scammers into real losers.