Good question @Adampirg! During an Alarm event, that triggers the Alarm siren, the siren will sound out of both the Base Station and the Keypad. If you adjust volume or chirp settings, this siren will still play at full volume. 
Good question @Adampirg! During an Alarm event, that triggers the Alarm siren, the siren will sound out of both the Base Station and the Keypad. If you adjust volume or chirp settings, this siren will still play at full volume.