I just don't know who is calling my telephone and then hang up! Please advise. 312-900-3159 is the number.

Thanks so much for this site!  I just got this number on my phone today and, since I never answer strange numbers, I let it go to voice mail.  I added it to my collection of numbers from some company trying to collect a $38,000 student loan from me.  I left school in the early 1970s, so sorry.  All of these numbers go under the same DNA (do not answer) that has a crickets ring tone.

Also, received call 5/15/12...and looking it up, appears to be an EducationalLink from Chicago, IL...I am job searching and very careful to delete any automatically completed forms to 'take courses and have an advisor contact....'   I'm sure they're able to capture the information once it's automatically completed, and before I'm able to delete and hit the 'no thanks' button to continue to the job application.  

I've heard, that some scams automatically capture your cell # and PIN if you answer the calls...and I would think especially if 'jibberish' is spoken...like, keep you on line for 60 seconds to 'trace' your information scams...

John R...read my comments below  I won't pick up numbers that I've not dealt with and stored in my cell.

I got a call on my cell phone this afternoon.  The caller asked for my son.  He spoke in a foreign accent.  I told him that my son wasn't here.  He said he'd call back later.  I really don't want him calling back.