Do what I do sometimes. Look at caller ID and if you don't recognize the number do a quick answer and off. At least it shuts off that continuous ringing.
The same caller asked for my husband. I asked "Who is this?" He said it's none of your business. The number shows it's in the L.A. area, but I have found info that it calls itself a mortgage company. Legit? No. Suspicious. Absolutely.
Calls at least two times a day, never anyone on the other end, we just don't pick up any more. It's been going on for weeks. Any ideas what we can do? I've reported it to donotcall.gov