Q&A Forum > > Reply To: LAPD warns that burglars are jamming home-WiFi security-systems ! Start a new discussion March 9, 2024 at 10:43 am #57354 J.C. HallParticipant @arizona480 Does SS also dial out with a cellular SIM or is does it just use WiFi to eventually communicate to their app on your device? I would assume they can also jam cell signals. This makes my 1995 Radio Shack security system superior as it will dial out on the landline.