Picked up on 2nd ring... just a dial tone

This comes up on Caller ID as "NBS".... they called our business once to see if we were interested in buying light fixtures, ballasts, etc. Then they called 5 min later asking if we design our own websites and if they could speak to the "owner" of the business... we are a corporation. So they hung up....

Called requesting owner... Umm why? Who are you where are you calling from.. "teresa"..Introduce yourself atleast... Sounded like she was calling from her home talking to a kid.