Bug jammers - jammers blockers natural hair
You were right thinking that most of video calls are using the 3G connection and if you will jam it, no video calls will be available. Jammer-Store can predict a couple of reasons why your 3G jammer doesn’t work properly. The fist one: it may be damaged, but I suggest that you would spot it anyway. The second reason may be that that the distance between you and your target is quite big. In that case all you need to do is to check the working range of your device and keep that distance between you and your target. There can also be a base station nearby, so the jamming radius will be a little smaller.
Also those guys can use non 3G connections for video calls. You know, they may use a Wi-Fi internet connection for their purposes, there are lots of apps that can help in achieving this. One of them is FaceTime, for example. You may use it to make video calls through the internet with your iOS based device. 3G jammer will not work against the Wi-Fi, because their frequencies don’t match. 3G uses 2100 MHz and Wi-Fi – 2400 MHz.
Another option is that they use FaceTime with their 4G connection. AT&T officially supports FaceTime and the app works using 4G LTE mobile internet connection. Verizon also provides 4G internet, so it would probably work with their users too. 4G LTE uses 720-785 MHz so 3G jammer will not affect it. In that case it will be better to use universal anti video calls jammer. It will block 3G, 4G and Wi-Fi so there surely won’t be any video calls around you in 15 meters (~50 feet).
Thanks for your question, I hope I’ve managed to help.