Hello community. I purchased an unlocked S10e through Amazon and have Verizon service. Reception at my house is not good and I want activate WiFi calling. Under the Phone App, the toggle to enable WiFI calling is grayed out. Took the phone to my local Verizon store (very helpful, but they were not able to find a resolution). They reset the phone network and other settings multiple times, replaced the SIM card, rebooted the system many times....all to no avail. Any suggestions? Thank you.