Didn't recognize caller id so didn't pick up.  Did call the number back because others have said it was a disconnected number - and I got the same recorded message saying the number is not in service.

3/12/2008 - 10:57
Received simultaneous calls on two consecutively numbered phones.  I was unable to answer.  Neither one left a voice mail.  Then I read this site.
I am filing complaint at: http://www.fcc.gov/cgb/complaints.html

Did not answer.  Hung up when machine picked up.  Get a "number is disconnected or no longer in service" when return call is made to number on id.

Did not take the call,

Did not take call, spoofed by computer actual number is disconnected.