Zlew02 wrote: This is a weak reply, and is misleading. I had to get a T-Mobil Sim card due to traveling in a place with no Verizon service. I pop the sim card in my unlocked, samsumg direct purchace S9+, first thing that pops up- Wifi calling is on! The android menu under advanced features now has all of the wifi/HD voice options that disappear when my Verizon sim is in. Verizon is suppressing it, not the phone, not android.

you do get T-Mobile's wi-fi calling is not the same as Verizon's. your unlocked device doesn't have Verizon's wifi calling software, if you want to be on Verizon and want to use wi-fi calling. get a phone designed specifically to work on verizon