No voice service: Temporarily turned off by your carrier

I have the same problem with a Motorola phone.  Question though: are your Motorola phones "international"?  That's what mine is and it only has the 2.4 GHz wifi band.  My other Motorola phone that doesn't have this problem, an older G4 has both 2.4 and 5 GHz bands and uses the latter.

which bands of wifi it has wont matter when it comes to the phones signal to make calls or receive them. are you trying to use wifi calling or something?

Of course I'm using wifi calling.  Many buildings, homes and apartments have foil lined insulation.  Effectively we live in Faraday cages which makes it hard for the cellular signal to come through.  That's why carriers make wifi calling available.  The problem may be contention between carrier signal and wifi and the software needs to turn off the SIM card to avoid that.  Apparently it's buggy at the moment but it seems to happen far less with the older phone which uses the 5 Ghz band but that phone is for the old landline number which gets very limited calls.

and you set the phone to wifi preferred?

also keep in mind that devices purchased from outside of TMO wont use the same wifi calling set up. was the older phone purchased from TMO and the newer one from somewhere else?

TMO's claim to fame was you could bring your existing phone to their network. I prefer to own my phone and not use contracts.   What people are saying here is that wifi calling works part of the time.  I just think TMO's software is not that good or can't handle the load.  Many also report they are in "dead areas" where OTA works part of the time so they use wifi calling.  Do you understand what I mean by contention?

you can bring your phone from other carriers sure..just as you can take your TMO phone to any other carrier..the down side though is it wont have the same things as the TMO variant will...like their own wifi calling..or the built in apps compared to the ones you must download..they wont work as well either..theres never a full guarantee that everything on that device will work perfectly with any other carrier other than the original one it was designed for.

I have the same problem with a OnePlus 7T pro McLaren edition from T-Mobile I have Wi-Fi calling and it's turned on yet I can't use my phone from my house and I don't get T-Mobile service at my house I have to go down the road about three blocks to get it so I cannot use my phone at my house at all it is very frustrating sometimes it works sometimes it doesn't and it never works on the weekends yet the little signal bar in my status bar shows that I have signal for using my Wi-Fi calling like right now at this moment yet it doesn't work I can't send or receive calls or texts from my house on Wi-Fi

see if the OnePlus can do this. switch your phone into airplane mode..then turn back around and turn wifi back on..then attempt to make a call. i know in the past some phones would get hung up a bit when there was zero or very faint carrier signal and attempting wifi calling. i can do this on my LG V60 perfectly fine..but not sure on any other OEMs.

might be your work around until whatever is going on in your neck of the woods gets figured out.

I have been receiving the no voice service, turned off by carrier, message a lot lately. I have a Moto Stylus 5G. I got it in April 2022 and from day 1, I have had issues with being able to hear people when they call if I am connected to Wi-Fi. My husband has the same phone and has all of the same issues as well. I took it to the store, but they had no idea. My husband said that the other day ot tried charging him international and roaming fees for a call he was making to NY (we live in PA) 🤦🏼‍♀️😭 I was wondering if anyone found any solution for any of these issues since this post is now a few months old. TIA!

how close are you guys to the Canadian border? might be a stretch but not unheard of depending on how far from the border you are..there have been people roaming into Mexico but not actually in Mexico..just close to the border and happened to pick up their tower instead.