I just figured it out!  

Call +44.115.955.7333 and ask for customer service, a representative will ask you for your number do  quick search in there system and remove your information.  It seems to be sent out by mistake and meant for one of their clients!

Cheers!!

I keep getting calls from 441-142-8489, they claim to be from T-Mobil.  When I tell them that I'm on the National No-call register they hang up.  The problem is that I've gotten 3 calls within a 10 minute period at times, today was the worst.  A woman with a very strong hispanic accent called and when I told her that I was on the no call list she screamed into the phone and said "we'll call you all we want, you can't do anything about it"....Any idea what company this really is, I don't think its really T-Mobil.

Yes, really!!
I had the same idea before reading you, and tried to connect a fax machine to my telephone. Just when I was about to post it here I read your answer :)
It's from Clinphone indeed, located at Nottingham UK.
A mystery resolved. Thank you!

It's from something called ClinPhone in England.  If you get this call transfer it to a fax machine and a page will print out.

I work at a hospital and have gotten calls from this number three times today, same beeping.

i work in a hospital, and i receive 2 or 3 calls every night from this number: 441159413326. I can hear two fax beeps before the call finishes. Anyone knows who is calling?

I am having the same problem - 4411598681, 441159413326, 4411598112 - except when they call, it just beeps and fills up my voice mail box.  The calls are every 5 minutes on the dot for about an hour.  I am so annoyed.  Does anyone know how to get them to stop???

it is definitely an international no.  there is a 7 on the end of the string of no's