for months calls in the afternoon, used to swear at caller and hang up.
now the answering machine picks up call and when the outgoing message begins the caller hangs up.
These lovely people call me every day - sometimes multiple times per day - I used to really enjoy going off on them, but it seems like the less you answer, the less they call. This is one of several numbers they use. I don't know if it does any good, but I've finally registered at https://donotcall.gov/ and made complaints about all the numbers they've called me from. My wireless provider offers the option to block specific numbers for $5/month. I hate that I may have to spend money to stop these @ss holes, but not dealing with it on a daily basis would do a great deal for my sanity.
Same issues as above. These people just "shop" your number out to their next call center in order to keep calling. I have called them back after they hang up when I answer MULTIPLE times, asking to be removed. Then a new number picks up where they left off.