They called said hello and we accidentally hung up.went to call them back and voicemail that said this person isnt available. 2 hours later had a phone call to my work phone asking if i was there. I'm very suspicious

no one on the line

Caller: I don’t know

Didn’t know the number so I didn’t pick up. No voicemail left and I texted and said who’s this and got no reply. So probably a scam.

no one on the other end, hung up