Who called from 3612640000

Caller ID:  GEORGEWEST TX

So far this number has contacted us twice.  On the second call I picked up on 2nd ring and they had hung up.  First time they reached our machine and hung up.  So - if it was a call for a legitimate business reason they should state the reason for their call.  I won't be answering if the number calls again.

CALLED 3/30/15 @4:28 PM Left no message on VM.  Blocking it with my Panasonic phone.