Hi @Jeffreicher! When the Alarm is in self monitoring mode, rather than professional monitoring, no dispatch will take place as there is not an entity to monitor for Alarm emergency signals other than yourself.
In the event of a burglar alarm, while Professionally Monitored, emergency contacts are called first before the emergency responders are dispatched. If any emergency contacts are reached, they can confirm the emergency or cancel a false alarm by telling the monitoring center the verbal password. If no emergency contacts can be reached, the monitoring center may leave automated voicemails and then dispatch the police. Disarming the alarm will trigger the Monitoring Center to cancel requesting dispatch.
This help center article covers all of the emergency signal types and the response to each, when Professionally monitored. Check out also, our article about Verified Response (if available in your area) and one about the Customizable Police Response options. I hope this helps!