I have exact same problem.  I don't know where to go with this either.  This has been going on for at least a year.  I found a company Named Bristol Management.  I contacted them.  They claim to not be in anyway connected to that phone number.  They would like to get to the bottom of it too.

Get calls from fax machine from this number at my home phone on a regular basis; this morning at 5:02am which is annoying.  Shows as "Bristol Managmn" on call display.  I tried calling and faxing that number with no success at either; it just beeps 3 times then nothing.  I made every effort to trace them and came up empty other than the source location being at Surrey near King George Hwy and Hwy 10.