HEADS UP: No WiFi calling with BYOD even if your plan includes it...

Wifi calling, HD voice, band 12, VoLTE, etc. All working on my Pixel XL.
 
the pixel works with those features because legere and tmo are trying to get people to switch from vzw with that phone.
 
They work because they've been baked into the phone from the get go.
 
They work because they've been baked into the phone from the get go.

If that was all it took, WFC for a TMO customer would work on any Android phone that has WFC baked in--Verizon variants of cross-compatible Android phones, for example. But evidently that's not the case.
 
If that was all it took, WFC for a TMO customer would work on any Android phone that has WFC baked in--Verizon variants of cross-compatible Android phones, for example. But evidently that's not the case.
Bake it in correctly then. Nexus phones have worked with T-Mobile's wifi calling going back to the Nexus 5 if memory serves me right. And the 5X and 6P, which aren't carried by then, worked out of the box with it.

That it does on the Pixel had nothing to do with Verizon... It had everything to do with Google wanting their phones to work everywhere.
 
Bake it in correctly then.

The problem arises when you have an OEM majorly involved in device software development/updates, and carrier-specific variants. Samsung, for example, may not bother with certification for TMO on a phone TMO isn't going to carry, including other carriers' variants of a Samsung phone TMO does carry.

The Nexus examples you gave were carrier-ambivalent, at least in that there was one model for all North American carriers. Same with the Pixel line and many other factory unlocked phones.
 
The problem arises when you have an OEM majorly involved in device software development/updates, and carrier-specific variants. Samsung, for example, may not bother with certification for TMO on a phone TMO isn't going to carry, including other carriers' variants of a Samsung phone TMO does carry.

The Nexus examples you gave were carrier-ambivalent, at least in that there was one model for all North American carriers. Same with the Pixel line and many other factory unlocked phones.
It's hard to comment on what stops it though. Is it certification? Or is it Verizon simply not wanting wifi calling to work on their variant of the S7 edge except for their network and Samsung obliges? Wifi calling worked on my unlocked Moto X Pure Edition and works on my Pixel XL.

We know that Google has it baked in so if the carrier allows it to connect up.. Good to go. Verizon and T-Mobile have zero issues on the Pixel. AT&T is bigger and has more money then T-Mobile yet they purposely have all unlocked phones not work on their wifi calling or even VoLTE / HD voice. That tells me I doubt it's a certification thing as the only stopping point. I think it's them being greedy. I look at it like if T-Mobile can do it.. The richer AT&T should be able to. The key fact is they don't want to though.. As they want you to buy their higher priced for same model phones... Yet on T-Mobile I get HD voice, VoLTE, wifi calling... All without lifting a finger. Pop in SIM and use the phone.