Caller lets the phone ring twice then hangs up hoping you call back to see who called.  Caution this is a SCAM.  Caller claimed to be on behalf of the Florida Police & Troopers Association.  Did some research and found thease crooks pockets most of the donation while giving a very small fraction of the donation to the actual cause being solicited.  There was no caller ID information on this call other than their phone number.  I plan to lodge a complaint with the FCC because of the lack of called ID information.  Charities have to list some type of caller ID data when making a call for donations, other than just their number, if not they’re in violation of the law.  It's also possible that this is a fictitious SCAM call fronting as the Florida Police & Troopers Association to get credit card information so beware.