I was called twice today. Once in the afternoon and I picked up but there was no response after i said hello. And they just called me right now at 8pm. I said hello and a woman said "hello" and just hung up on me right away.
I receive a call from this number several times a day, I always seem to miss it and everytime I call back it is busy. A search states it is a land line in San Jose, CA owned by Pac Tell.
Even after you tell them no they keep calling. You answer and they say hello or nothing and just hang up. I think they just call just to say they called you to their bosses. Last time I picked up and said "You've reached the San Jose Mercury News". They replied "But we're the San Jose Mercury News and we're giving free subscriptions". I said "Yes we are too" then he just laughed and wished me a great day haha. Answer with them knowing you know who called and they won't hang up right away.