They just called me too. Didn't leave a message.

They called me while at work. Did not answer and they did not leave a message.

A call but no message.

Just got a call from them, I answered, but nobody said anything and the call was disconnected.  I waited a few minutes and called back with *67 before the number so that they wouldn't have record of my cell being an active number.  It went to a recording for home security.  Asked to press 2 if you want your number removed from their list, but in my opinion I think that just lets them know the number has a person and they can then sell my phone number as an "active phone number"

got an answer from this number addressing himself as Dan the Security Specialist, but then the call went dead.