"Congratulations. You have been selected to..." (that's where I hung up.)

Well, they're on a roll today, 3/18, aren't they?  Caller ID said "TCG PAYPHONES".  What?  Who has payphones anymore?  LOL
Called my PRIVATE, UNLISTED Incoming-Call-ONLY line; so knew it was a scam because my business is inactive right now.  Let it ring four times, then picked up silently to see what would happen.  Dial tone.

Call Type:  LIKELY SCAM or PHISHING

If someone is somehow using an actual payphone to run this or any scam, know that in Massachusetts, the payphones are all configured to NOT ACCEPT incoming calls.  That may be why you got a busy signal, although usually it will just not ring at all/go to 'dead air.'  This was started decades ago as a way to stop drug dealers from using payphones as a way to evade detection and capture.  Now the drug dealers all use cells, but the law still sticks.

You won a free gift for doing a survey..I don't think so....

Got a call from these vermin. Hung up.