They have been calling me twice a day for the last three days. The calls appear to be coming from Capstone Mortgage, although someone could be spoofing their number. Since I have no existing business relationship with Capstone in any case, I presume the calls to be spam and have blocked their number.

Receive 2 phone calls per day on my cell phone from this number ... silence, then disconnect. I want off of their list.

I get the same at my work phone number.  2 calls a day and always a disconnect before anyone comes on the line.