Verizon iPhone and Entune

can anyone share experiences specifically with Verizon iPhones and entune? I know since they are cdma they can have issues with dual talk and data although voLTE seems to be an improvement. I currently have at&t which is gsm and allows both. I'm thinking about switching as Verizon seems to have a little better coverage at my new house but don't want to chase "slightly" better service to lose the ability to use data while on the phone.

 

You are able to browse the internet, emails, send messages while you are on a phone call. I have Verizon.

https://www.gottabemobile.com/2014/09/21/how-to-turn-on-voice-data-on-verizon-iphone-6/

 

I'm not sure if my phone is using data while connected with entune, but I've had no issues talking on the phone and my girlfriend playing with the entune unit at the same time. Yes, on an iPhone and Verizon.

 

I am having issues with text messages.

Sometimes I get an alert on screen, sometimes not. If I get the alert on screen it never has the option to read. Once I hit the ignore to clear the screen, I will not get anymore until the truck is cut off.