Answer:
1. To contact residents in a specific area with emergency messages
2. To either speak with residents by recorded message or leave voice and text messages at each residence
Step-by-step explanation:
Reverse 911 is a system that allows emergency responders to quickly contact residents in a specific area in case of an emergency. The system uses a database of telephone numbers for residents and businesses in a specific area and allows emergency responders to send recorded messages or text messages to all of the numbers in the database in a specific geographic area. This allows emergency responders to quickly notify residents of an emergency, such as an evacuation order, a gas leak, or a power outage, and provide them with important information and instructions. The Reverse 911 system could be activated by an emergency responder or it could be set up to automatically notify residents in the event of a certain emergency.