800notes.com said it was from Crowne Plaza Hotel and it invcluded a better rate. I had looked up their rates online earlier in the day, though I don't remember giving my phone number, which is unlisted. When the call came in, I was not here and the answering machine picked up. They left no message.
Caller ignored the screener's warning, and said / did nothing as instructed by call blocker. Call, say nothing, ignore the screener's warning, and you get blocked! All scammers and unknown, unspeaking callers get blocked forever! Good riddance!