Who called from 2105851200

this number called me incessentanly last night, I was on an important call for work and could not switch over, I was a bit miffed that they didn't even leave a message after disrupting my conference call.  I do not respond to stalker type phone calls (i.e. leave a message and I'll call you back), I don't know anyone in texas.  i feel better knowing its a crank caller, i was really worried last night that i had some weird stalker or something.

Call came in on a Thursday Morning....over a dozen times.  We are a Doctors office and it's EXTREMLY annoying.

get calls from 210 585 1200 every so often.  Phone will ring sometimes 11 times have to unplug the phone.  This happens at night any where from 11 pm or 1am in the morning. All there is a loud beep.  this will also go to my voice mail when not at home.

how do i stop this??it won't stop..it's driving me crazy!!!if i find out who is sending this to me,i will get his home # and call him everyday til i die..i'm only 30..

I received several repeated phone calls on a Saturday morning between the hours of 6:30 and 7:00.  My wife and i work all week and have to be up early in the morning 5 days/week like most hard working people.  This was the only day we could sleep later as we also get up for church early on Sunday.  All i get is a beep on the other end.  When i reviewed my messages this a.m. i found several other calls, 9 to be exact, from earlier in the week.  When i listened to my messages from this number, they say:  If you want to cancel the fax press 9.  If you want to receive the fax press a different key (i don't remember what number they said.)  I believe that this is a automatic dialer trying to send fax spam.  It should be reportable under the fax spam federal laws that were passed.  I don't have a business name, but know it is a San Antonio, TX area code.  Does anyone have information on the name of the business?