Today, updating cellphones is really a necessity for everything, including your alarm system.
Calls, texts, emails & apps, have all created huge cell-network demands for the phone companies. To keep up, they continue to change communication technologies & towers, obsoleting the old network to make room for the new. It's called sunsetting.
Not just pretty colors on the horizon - a sunset can mean your alarm system might not be able to reach the police/fire depts, to get you help in an emergency.
