This will allow you to put your system on test through the Alarm.com mobile app so any signals sent to the central station will not be dispatched on. Open the app, go to more, then monitoring settings, system test mode then choose 1 or 2 hour, then click start test mode then confirm. 

After the hour or 2 hours has expired your system will automatically go back to normal. You can click stop test mode before the time is up if you choose after you are done with the testing or reason for putting it on test.