Siren sounding timer and loudness adjustment

I want to control the siren timer and loudness, or siren can be muted if needed to do so. But base station lack of this very basic feature. I installed this system with easy, but I do not want to arm the system. Because I live in a condo, fixed 10 minutes siren time of false alarm will make my neighbor craze if monitoring center can not reach me or my other contact persons. Even police comes to my door, he/she can not access my Ring Alarm system. I only need siren volume that intruder can hear but not my neighbors.