[ASUS ROG Phone II Questions & Answers] ZyroSS:
This is the first time I have ever posted anything so please excuse the lack of formatting or "neatness."

First of all I want to say that every test I have done was done for a period of 3 days with each of these carriers. The test involved taking the cell phone to the city(Raleigh, NC) to a more rural area(literally anywhere not Raleigh) to test for signal strength differences, voice, and sms. Also, the phone I used is the North American model not the tencent model.

The reason I even did this is because I do not want let go of my Verizon SIM card(I still won't but there is a different reason why at the end)

OK so with that being said let's talk FUNCTIONALITY: ASUS(I have a screenshot of this) is telling me to read in between the lines and that they will push for VoLTE and VoWIFI with USA Carriers AFTER they shut down their 2g/3g Services. However right now VOLTE & VOWIFI DO NOT WORK WITH ANY CARRIER IN THE USA. The closest thing you can get to VOWIFI/VOLTE.

Verizon: Full 4G Support, Data speed and reliability FAR exceed that of AT&T or T-Mobile in RURAL areas of NC. VOICE CALLS AND TEXT MESSAGES DO NOT WORK ON VERIZON. If you absolutely need to stick to Verizon I have a functional work-around but it does take some time to set up(at the end of post)

AT&T: Full 4G,H+,1X Support. VOICE CALLS, TEXT, DATA ALL WORK ON AT&T. If you are not tied to any carrier, I would recommend using AT&T or the best MVNO it has: Good2GO. It is on par with T-Mobile in the city, and also works fine in rural areas.

T-Mobile: Full 4G,H+,1X Support. VOICE CALLS, TEXT, DATA ALL WORK ON T-Mobile. I do not recommend this unless you only live in the city and only stay in the city. Rural areas are a no-go for T-Mobile in NC(if you want more specific about which rural areas were tested lmk, but this is mostly central NC)

So I came from Verizon. What is holding me there or why would I recommend you keep it? Well, if you have a current family plan on Verizon with unlimited data, you may want to consider this too, although it is inconvenient.

Reasons to keep Verizon: Unlimited 4G LTE Data plan or an MVNO from Verizon all offer the *MOST RELIABLE* 4G LTE connection. This means that there will rarely be a place without 4G LTE on. The next best thing is AT&T, and although you may not get 4G in as many places as Verizon, it is pretty damn close. Bonus from AT&T is you can actually make calls and text, but wait.... what about 100% Verizon?

IF you reached this spot it is because you want to know the ONLY currently FUNCTIONAL workaround for this problem with no VOLTE VOWIFI or Calls or texts. The solution is to set up call forwarding to a free google voice number from the my verizon app. While you are there, you may as well want to bookmark a webpage in chrome or your browser of choice for text messages. Verizon offers a free service where you can check your texts online. This was originally intended for looking at texts on your computer, but who said you can't use it on your phone?

However, I, cannot stand the idea of being in an emergency where the 4G signal from verizon is too low to make a google voice call, and that I NEED to call someone. Therefore what I am doing is the following: Setting up the Verizon workaround for forwarding calls to the google number, setting up the text message workaround on verizon, and STILL getting an emergency $10/mo AT&T MVNO plan that has unlimited text and calls(Good2go mobile).

other AT&T MVNO's charge way more for that feature by the way. I am usually always travelling, so the amount of times I will be without 4G LTE from any carrier(T-mobile, AT&T, or Verizon) is increased exponentially. I need that backup failsafe with the AT&T MVNO.

With that being said though, if you're wondering why I didn't mention google fi, it is because this sim card 100% did not work at all in this cell phone. I tried changing the APN's and everything else under the sun but it simply did not work. Big bummer since I was hoping this would be my next daily driver for a carrier.

If there is anything else you're interested in let me know. I've had the phone for a good week now so I'm pretty comfy with the way it works and other small things.