This fax machine keeps trying to call me how do I block this call

I am also receiving fax attempts from this number to my cell phone - several times per day.  Does anyone know how to contact them?

2 calls in 10 minutes , a continous bip

We are receiving fax attempts from this number in the middle of the night, it is waking my husband and myself all night long. Please update your records to our correct fax #: 516-495-6690.

Calls repeatedly, same as above - only a steady beep if you answer.  We are a lab.

Called 12 times in about 35 minutes to my desk phone at work - trying to fax something - beeping is the only voicemail. Number is from Canada, Ontario; We don't do business with anyone in Canada. Its most likely an automated telemarketing through fax. Comes in also as (613) 249-3235, (613) 249-3231, (613) 249-3232. Super annoying when I'm trying to work!