If you have an envisalink controller to go with your DSC alarm you can use j64Alarm to interface with it. There is some info about it in the gettingstarted doco on my github: https://github.com/joejarvis64/j64.AlarmServer . There are also several posts in the bottom of this thread where a few people have tried it out. DSC/Vista Alarm Smartapp and devices based on AlarmServer