1. A method of handling alarm events, comprising: receiving, using at least one component of an alarm system that is configured to monitor a building, sensor data sensed by at least one sensor configured to monitor activity associated with the building, the at least one component of the alarm system being located within the building; detecting, using the at least one component of the alarm system and based on the received sensor data, a potential alarm event associated with the building that triggers a start of a predetermined time delay in which a user is allowed to cancel the potential alarm event; sending, using the at least one component of the alarm system, a signal that is indicative of the potential alarm event to an offsite system located at an offsite location that is physically separate from and outside of the building monitored by the alarm system; after detecting the potential alarm event: triggering the start of the predetermined time delay in which the alarm system will accept input canceling the potential alarm event from the user, monitoring, using the at least one component of the alarm system, for receipt of input canceling the potential alarm event within the predetermined time delay in which the alarm system will accept input canceling the potential alarm event from the user, and based on the monitoring for receipt of input canceling the potential alarm event, in response to input being received that cancels the potential alarm event within the predetermined time delay in which the alarm system will accept input canceling the potential alarm event from the user, using the at least one component of the alarm system to send a cancellation signal to the offsite system located at the offsite location that is physically separate from and outside of the building monitored by the alarm system; using the offsite system to receive the signal that is indicative of the potential alarm event from the at least one component of the alarm system; and after receiving the signal that is indicative of the potential alarm event: monitoring, using the offsite system located at the offsite location that is physically separate from the building, to determine whether the offsite system receives another signal that is related to the potential alarm event, that is sent by the at least one component of the alarm system, and that is received within a predetermined period of time after receiving the signal that is indicative of the potential alarm event from the at least one component of the alarm system, in response to a determined absence of another signal received from the at least one component of the alarm system within the predetermined period of time after receiving the signal that is indicative of the potential alarm event from the at least one component of the alarm system, using the offsite system located at the offsite location that is physically separate from the building to determine that the potential alarm event associated with the building is an alarm event associated with the building and to take action in response to the determination that the potential alarm event associated with the building is an alarm event associated with the building, and in response to a determination that the cancellation signal is received from the at least one component of the alarm system within the predetermined period of time after receiving the signal that is indicative of the potential alarm event from the at least one component of the alarm system, using the offsite system located at the offsite location that is physically separate from the building to determine that the potential alarm event associated with the building is not an alarm event associated with the building.