Touchtone Telecom Inc

This company called me at 6 AM Eastern time.. stayed on the line for 2 min: 39 seconds.. without leaving any voicemail. I have never HEARD of this company & curious why they would call a cell number (better question is how they GOT my cell number!) at 2 AM approximately Pacific time?? I am NOT answering any phone calls at ANY time much less at 6:08 AM ... especially if I have no dealings with them & they don't have the courtesy to leave a message to let me know why they are calling at that time of day! If they want to speak to me, they can 1) call at a much later time or 2) leave a message telling me who they are &, what they want & leave a call back number!!!