The network extender works by connecting to your home internet service. If you have home internet service you don't need the network extender just turn on Wi-Fi calling on your phone in settings and verify your 911 address.
We're here for you, and we want to help make sure your network extender is working! Please, send us a Private Note, so we can dig into the troubleshooting and get you taken care of right away!
Georgegrafer, thank you so much for reaching out. We would love to check into this for you. Do you have Wi-Fi calling activated on the iPhone 13 https://www.verizon.com/support/knowledge-base-208397/