No message left and did not recognise number probably scam

I had a call from this number today 30/10/2020 at 10.17 am. I missed the call so I called back, no answer and then it went to probably voicemail without saying a word - just silent. Then a message appeared on my phone that I have voicemail. I called my voicemail and it said in computer voice: "Stay save and stay home". Weird.