Here where I live if you dial 911 and don't speak they will send the police to your home to check on you. This is of course calling from a land line in a location that has the enhanced 911 system. This is one of the main reasons that I have not given up my land line. If I dial 911 they know exactly who I am and where I live. No time is wasted trying to ping my cell phone to get a location.

If you call and hang up, they will call back. If they do not get an answer they will send a police officer to your home to check and see what is going on.

I'd find the non emergency number for the police department where he lives. Give them a call and explain the situation and ask if the situations above apply to that locality. They may also have suggestions for what to do if an emergency should occur and he need to call for help.

Good luck!

Joy