The cellular companies will be ending support for 2G (second generation) digital service on December 31st, 2016. If your security system uses an older 2G cellular device for communications, it will no longer communicate with our central station after December 31st. We have sent out notifications to all of our customers affected by this change. We recommend scheduling your upgrade as soon as possible to avoid any disruption in service. If you have any questions give us call at 714.282.0828.