Never leaves a message. If I catch it I just disconnect.   If caller ID is Unknown Name...I don't respond

I will periodically get calls from this number (707) 741-3199.  I don't answer them because they are unidentified.  In the past they would let my entire message go and then hang up.  I now have it stated on my recorded message that "If your call comes through as unidentified, I WILL NOT ANSWER IT.  If it is urgent, please leave a message and I will return the call if I find it necessary".

I am finding that these callers now just hang up.  Hopefully they will no longer find a need to pester me and waste my time.