Thank you everyone. I thought I was a weirdo, not answering calls from unknown callers, but it seems to be a common practice. Have a great weekend everybody!
@frenchguych I answer with a time-related greeting and hang up if no one's speaking. I don't mind cold calls too much so far everyone's been polite when I said I wasn't interested in their offering
@frenchguych unless I am expecting a call from an unknown number, Do Not Disturb is enabled on my phone; and I won't even know if an unknown number calls me unless I happen to be looking at my phone when it happens.