I was going to test my iPhone as a 4G source, but I decided to pass because I don't have good enough signal in the apartment with the phone to make it worth it. Calls work fine, and I've set up WiFi Calling, but for data when it gave me any kind of speed test results it was about 37 Mbps down and 0.2Mbps up. So, for running the whole network, I don't think that would go very far. I do have 5G on my plan but there again, my I have to change locations before the phone changes to 5G instead of using LTE.