AT&T

Alex would like to use his own router with AT&T U-verse, can he? Leo says only if you aren't getting your TV service from U-verse. That requires AT&T's proprietary router. You could turn the AT&T router into bridge mode or IP Pass through, and then use your router with it. That's possible. Will it affect the speed? Leo says no, but it could affect whether you can select your own DNS service. You can also try using DNS over HTTPS using Cloudflare to eliminate the ability for AT&T to see what you're doing. But that's advanced stuff.

John got an "Obama Phone" with AirVoice Wireless. When he got a new Motorola Moto Phone that was unlocked, it says it uses GSM or LTE. And AirVoice Wireless only uses Verizon. Can he use the phone? Leo says that Verizon is CDMA, so a GSM phone won't work. But AirVoice also says they're an AT&T carrier. From the chatroom - input the APN settings listed here and it needs to be a phone that works with AT&T. https://apn.gishan.net/en/apn/airvoice/motorola-moto-g-4g-2nd-gen

Milan has a OnePlus 6, but his carrier, AT&T, doesn't support voice-over Wi-Fi with it. Leo suggests a microcell, or femtocell, and tell them he's moving to another carrier if they don't give it to him. Another option is to use an app like WhatsApp or Google Voice to do it. According to the chatroom, it has to be an AT&T branded OS to support that feature.

Here's a list of the phones AT&T supports with that feature. (Thanks ScooterX)

Patrick bought a Samsung Galaxy S9 at Best Buy for Black Friday. Can he just drop his SIM card in or does he have to get it activated? Leo says he should just be able to drop his existing SIM into it and get started. Leo says that the FCC doesn't like carrier locks if the carrier isn't subsidizing the phone. So all he'll have to do is call the carrier and ask them to unlock it, if he needs to. But if he's a Verizon customer, it shouldn't be locked at all, and since he's not switching carriers, it should work if it uses the same SIM.

Craig has been stunned by overages in the hundreds of dollars. Leo says it's time to get a new provider. Every provider has either an unlimited plan or a cheap charge for another GB or two of access. He should set his photo apps to not download unless he is connected to WiFi. But he can't get satisfaction from AT&T about the overages. Leo says he can shame them by tweeting out his complaints. They have a social media department that pays attention to that. He can also write the CEO. He has an office for complaints. His name is Randal Stevenson.

Eric has noticed that when he's recording U-verse on AT&T, his internet bandwidth drops dramatically. Leo says that's because U-verse DSL shares his internet with the TV. U-verse fiber optic is the other way. Leo says it's a crime that we can't get decent internet in the country that invented it all.

Bob bought a Samsung Galaxy S9 and he thinks it's too large for his hand. Leo says that larger phones are the future, as people prefer a larger screen to hand comfort. Bob also has hundreds of contacts on his phone that aren't his after he synced it. Leo says it's possible that AT&T or Samsung sold Bob a phone that was returned and hadn't wiped it before doing so. But if they sealed it up to make it look new, that's against the law.