There's all sorts of calls coming in these days. I have Comcast for TV and phone so when a call comes in, and I have TV on, caller ID shows up on tv screen. Phones also have caller ID....I don't recognize a name or number, phone isn't answered. If they feel their message is important, they can leave a message....and most times, no message is left.
Do you have caller ID in any form VPL? It really helps, though if I don't pick up, the phone rings till the caller decides to end the call....That is annoying, too...