3D Security, Inc. also offers Cellular Phone Modules (CSM). This CSM can be added to your security system to protect your Alarm’s phone communication. When your alarm goes off or sends a report, it will go through the module to the dispatch center. This will help prevent any lost calls to Dispatch due to phone line troubles or lines that have been cut or disabled stopping your system’s ability to call out. This is a very smart idea for customers thinking of doing away with their current land lines or switching to any Internet or Cable phone service. The CSM allows you to arm your system.
Remember with IP/Cable service phones if you lose power you lose your phone service.