errant 911 calls can become annoying and expensive once the police decide to charge you for dispatches. The only real way to prevent this is to have the user stay on the line and tell the operator that it was a mistake. Very few places require a dispatch in that situation but if the users are embarrassed or scared then simply hang-up on the 911 operator then they usually callback or dispatch or both.
Here is a dirty way to keep track of this problem and it will only cost you a phone.
Set up a Line on a phone and call it extension 911, then another for extension 9911.
Set RNA to 2 seconds or 3 seconds then forward to 8.911
Set 8.911 (or a variation that does not step on your dial plan) to strip the 8. and call 911
Now when someone calls 911 or 9911 it will be recorded on your emergency phones Missed Call log.
Now comes the real dirty part. Call the user back and ask if they are ok. Then explain to them, innocently, that it costs a lot of money when you hang-up on the 911 Operator. Then tell them you are glad they are ok and not in danger and that lots of people make this error (empathy). I guarantee you that this person will not make the same mistake again once they know they can be tracked. Internal shame is stronger than external embarrassment.
Now go look at the old Berbee InformaCast product or the IPCelerate product or any host of other E911 features that will send an immediate email when 911 is called, complete with Caller Info and time.
