@saukalra wrote:
Thank you @computergeek541 for this explanation, this makes sense. Yes my Moto E4 is a Verizon device and this is the first time I am using a non-Verizon sim card on this device. What you explained is the likely reason why I initially had troubles making voice calls. I will keep this in mind if I ever have to do a factory reset in the future. 🙂
Specifically, the steps were to go into the regular android settings, “More”, “Cellular networks” , “Preferred nework type”, and set the network type of LTE or 3g. It doesn't even matter which you select. Either will work even though it's the 3g that somehow gets disabled by the software. Just don't select 2g as your prefered network type.
On various places on the net, there are people who suggested to do a whole bunch of things to get voice calling to work on these Verizon Moto E4s such as debloating the Verizon software, changing APN setttings, rebooting your phone and such, but I can say with certainty that all of these things were unnecessary. I even get a good lauch at those who were swearing by in that changing APN settings is what made phone calls start working when APN has nothing to do with voice services (although there was the thing that I mentioned in the last paragraph of this post).
The APN settings will appear blank on thes model, but I can also say that there is no need to add the Public Mobile settings. Even though the settings appear as blank, your data will work just fine.
Setting the network type in the settings works right away 100% of the time if your device has just been factory reset or if it is brand new.
This model also had another way to get vocie to work, and that involved using your data connection for a few minutes. After some time, the 3g would almost magically enable itself allow your to make phone calls. But we don't have to worry about that, because as I said, setting network prefered network type to either LTE or 3g works guranteed without playing around with a bunch of other stuff.
