We have installed and been using our new Elastix system for 2 months now. We are using Polycom phones. Since we went live there has been a problem that I can't seem to solve. Folks here dial a 9 to make an outside call and a 1 for long distance. There has been many occations were they dial 911.. OOPS... They hang up and the 911 dispatcher calls back but if no one answers the police come out. How can I prevent these accedents from happening? Is it a dial plan option?