Called and hung up.  I've been told that this if often done to find out who is home during different times of day for various reasons.  Sometimes to sell your # as a good # for soliciting or could even be by thieves.  Something needs to be done about this.  If someone calls me they should not be able to do so anonymously.  

9:15 call. Left no message. I don't answer unknown callers or even like to have answering machine  on.  It doesn't seem to matter that we are all harassed to death. It does seem that it's ok with the powers that be that we have no way to combat this. We should get a price reduction for every unknown or scam call received. To have to pay for this is absurd.

Called and hung up. He said "This is Seminole County" and then disconnected. I called the number back and the line was busy.

called said they were representing energy assesment program for energy company

Trying to sell crap, sorry I stayed on phone only to get pissed off!