This number rang our business line 32 times from 5:19 am through 8:40 am so we now have 32 messages of the beep.beep.beep fax transmittal tone. Went to FCC complaint site but their form asks only for information transmitted on a received fax - since they were calling a regular phone line there's not an adequate way to explain the complaint.

Email them or call them..

Do consider maybe getting a call blocking device or phone.. You can google them and many are around $60.00 or so.

Report your callers here, not just to the DNC alone:

https://www.ftccomplaintassistant.gov/#&panel1-1
https://esupport.fcc.gov/ccmsforms/form1088.action
https://complaints.donotcall.gov/complaint/complaintcheck.aspx?panel=2

By State DNC lists:
http://800notes.com/res/DoNotCall.aspx

FCC Abandoned Calls Complaint form:
http://www.fcc.gov/cgb/consumerfacts/1088D-R.pdf
email:  fccinfo@fcc.gov