called but didn't leave a message

Received call from 707-200-6950  on Wed. afternoon, 8/12/15.......thru my ans. mach.  did not leave mssg.  Put on Call Screen.   Wed. evening, 8/12/15,  call received from 707-200-6949.....did not leave mssg.   Put on Call Screen.   Did NOT recognize either number.

I answered the call and a recorded voice asked me to hold. I even waited for a minute, only to hear the recorded voice tell me "all representatives were busy" and to hold more. I didn't.

Called but no message