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Cell phone network upgrades are common for mobile users.  As time goes on, network technology improves and it becomes necessary to upgrade to the next available option, 4G LTE and most recently 5G. Wireless connection continues to get faster and more reliable.  This is also true for security systems using this technology.

AT&T and Verizon have announced their intention to sunset their 3G network communications. These companies have recently set deadlines, so over the coming months they will be working to complete their transition away from 3G.  We have noticed that there are already areas going through this transition, updating cell phone towers and completing these changes, which renders the 3G networks obsolete.  In addition to AT&T/Verizon, other data carriers have also started to sunset their 3G networks. It is imperative for you, as a home or business owner, to stay ahead of the game and consider your upgrade options now.

We have a few solutions to upgrade your alarm system. One is to the SeaNet Mesh Radio, which if available in your area, would offer the most reliable form of communication between your system and Seacoast Security.  One of the greatest benefits to using radio communication over any other, is future network sunsets will not affect your mesh radio system.  You will have peace of mind knowing that your home is protected by reliable communication, and can also be assured that you will not have to worry about future telecommunications company network upgrades or changes impacting your alarm system. To choose this option you will need to be in an area supported and new equipment would need to be purchased at a discounted rate during this transition. If you rely on remote services (code changes, arm/disarm, video etc.) with your current service, we would need to discuss how to continue these services as the radio network alone will not support them.

If SeaNet is not available in your area or you have remote services, IP or Cell may be the options for you.  If you are not aware of our remote services this is an opportunity to learn about them and see if they are something that may enhance your security experience. If this is something you decide you want, IP or Cell will be your options. 

We encourage our customers to make informed decisions about their alarm systems well in advance.  If your system operates on a 3G network, start thinking about your options.  We welcome you to call our offices to discuss those options with our designated staff at 800-654-8800, option 2.  At Seacoast Security, we are committed to finding the right system for your property, your safety, and within your budget.

If you’re being effected by this change, you will have received a letter indicating so by mail. If you have questions or need to schedule an appointment, please email us at

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