Wifi calling not working
I recently have switched to a satelite internet provider. Ever since, I have been unable to enable wifi calling. I do not believe that it is the Network. The installer was able to use wifi calling on his phone without issue (his was a Samsung). I have tried restarting my phone, resetting the network, and a factory reset on my phone (iPhone 7). My husbands wifi calling (iPhone 5c) works off and on. I have been in contact with my provider, Verizon, and they have reset the setting on their side as well and nothing has worked. The only two possible issues I can think of is:
1. My network security/firewall is somehow blocking wifi calling or certain IP addresses? I'm not completely informed of how these things work, but it's the only thing I can think of.
2. It's an issue with the phone itself. I kind of doubt this since my husbands phone is so finicky about it as well.
Does anyone know how to test to see if it's the firewall or network security program? Or any other ideas of how to get wifi calling working?
Thank you in advance!
iPhone 7, iOS 10.3.3