Never just hang up. You may have called 911 by accident, or your situation may have resolved itself, but it is important to let the 911 Telecommunicator know this. If you end the call abruptly, the Telecommunicators at the 911 center are going to assume that something has gone wrong and will either call you back or send help anyway. Some communities require the dispatch of police officers on any hang up calls. This will take away from the 911 center’s ability to take calls and dispatch services to on-going emergencies, so make sure the 911 call taker tells you it is OK to disconnect before you hang up. And keep in mind that the call taker can dispatch responders to your location without disconnecting from the call, so, until you are instructed to do otherwise, make sure to hold the line so that you can provide any necessary information or assistance to the 911 operator.