What I do is call whoever the flyer is for i.e. contractor, plumber etc. I usually call late at night or early morning. When the answering machione kicks in, I set the phone down and leave it alone. after about 5 - 7 minutes, the answering machine stops and I do it again until the machine is filled up with dead air. That way, legitimate busines cannot et through.
Junk Fax Brodcaster signuture is Mas-Media Inc.
105-13321 Young St. Suite 250
Richmond Hill, Ontario
L4E 0K5
Tel: 416-800-1108
Carrier: Iristel Inc. / iristel.ca
1-866-779-IRIS (4747) - Toll Free - 1-866-779-4747
Looks like Iristel provide them PBX VoIP and Virtual Fax Services for a very long time. Calling them is waste of time.