This number just called my office phone and left a silent voicemail.  Could hear someone on the other end fumbling around trying to hang up, but they didn't say anything...

This # called me too and they said that they are from Manhattan College in Riverdale, NY.

Are you an alumni?

Or they might be one of those indian companies that get hired by other companies to call people...I'm not sure...

They called me also! Never left a voicemail or anything.

Same thing...fills up my caller IF unit with several calls per day...even on Sunday.  I never pick up...they neve leave a message....but finally got curious to see who it was.  I called the number several times but it is always busy.  Could be a computer dialing numbers at random.  When one person picks up it hangs up on all others.  Creepy.

They call me also and never leave a msg.  It is very annoying!