VoLTE and HDVoice not supported for Google Pixel XL
My Questions is why is at&t the only provider that does not support VoLTE or HDVoice for non at&t branded Phones. I bought the Google Pixel XL from the google play store and a LG Sport Watch from at&t. I can not use at&t's NumberSync Service because they will not support my Pixel with VoLTE and HDVoice. I checked and if I bought the Google Pixel XL from the at&t store it would be supported. What is so different besides who I give my money to for the phone? I also checked with Verizon and they support those services even if you do not buy the phone through them. I checked with sprint and Tmobile as well and they are on the same page as Verizon. When will at&t catch up to their competitors because I know they are losing customers over this and I am soon to be one.