No doubt, either a scam or a tele marketing call. When you ring back, you are told that the number you have called has incoming call restrictions.

Auto detect identified this number as potential fraud. It was an Australian accent call person who said the name of the company so fast I had to ask twice and still didn't get it. She then went on about calling me back, I was interested in a 2nd income last year, do I still want one.
None of this held any merit. Sounded like digital stocks or similar. Just laughed and said not interested. Wasn't pressured.