Let's start with the GSM network. We can use the Nokia Network Monitor to learn about channels and frequencies. buy my font (advertisement): https://shop.liveoverflow.com/ Nokia Network Monitor: https://en.wikipedia.org/wiki/Nokia_network_monitor Vadim Yanitskiy: https://twitter.com/axilirator Basestation Map: https://www.cellmapper.net/map =[ ❤️ Support ]= → per Video: https://www.patreon.com/join/liveoverflow → per Month: null =[ 🐕 Social ]= → Twitter: https://twitter.com/LiveOverflow/ → Website: https://liveoverflow.com/ → Subreddit: https://www.reddit.com/r/LiveOverflow/ → Facebook: https://www.facebook.com/LiveOverflow/ =[ 📄 P.S. ]= #MobileSecurity