I tried entering 00000 when prompted then by 604 cell phone number after the first call but I got 3 more calls after that.  How long should it take to remove someone's number?

Pure harrassment.  Impossible to stop.My parents nad I have been receiving calls/fax attempts from this number at all hours.  They are in their 80's and are terribly inconvenienced by this - do not even have a fax, and when they finaly get to the phone just get a series of beep beeps, like someone is trying to fax to them.All attempts to call/fax them have failed. The phone company has failed to be of any help to stop it.

I receive calls from this fax nmber at my office at montréal

Looking for a device that blocks Fax signals.  I spoke to the spy store here, and they said there are several fax signals now.  Not one device will kill faxes, but there is a device that will block all calls unless you put in a pass number.  I figure this would only serve a person who only has friends/relatives calling that line.  No outside calls without pass number will get thru.Also, had one spam fax call ring thru my phone at 3am on a Sunday.  My phone has a 'Night Mode' where it won't ring, but I know that police and emergency can turn it on with their 'special ringer'.  Well, that's exactly what this spam fax did.  it made my phone ring - Even though I have a night mode.  So I turned the ringer completely off upstairs.  That's the only thing that works.NIce huh?  They get the technology before we can.

Calls my land line incessently. What can be done to stop these people?

spam them back, go to this site:http://www.douglaspublications.com/contacts.aspand hit their contacts with as many emails as you all can.  See how they like it back!