A “Test Not Received” signal from our monitoring center indicates that we were expecting to hear from your system at a certain time and we did not. This can happen for a variety of reasons including a bad phone line, power outages impacting internet or phone services, and more. This signal indicates that your system is not communicating with the monitoring center and if it were to be activated, we would likely not receive the alert. Please contact our support department at 413-445-4030 and we will work with you to resolve the issue and restore your system. Many clients like the safety and certainty of knowing that their system is always monitored, and add cellular back-up service when and where applicable. Let us know how we can assist you in being safer and more secure.