It's often not a matter of technical feasibility, but "is it on the list". Ideally things that could technically do it should be "on the list" but in reality it's probably a janky business process that decides what gets in and what doesn't.
Both models are VoLTE compliant. AT&T whitelisted the former supposedly because they once sold/supported this model directly, but told existing users of the latter to replace their phone or GTFO.
I gladly took the GTFO option and switched to T-Mobile...substantially reduced my monthly bill to less than $17/mo per phone and saw improved reception at the office.
India had that in the past but since 2008-09 at least we have this system where you buy your phone from the market and use whatever sim card you like.
everyone has the same plans for the same price so its a matter of preference/ network quality, etc etc.
i find this funny that w
people, if they have to buy a phone on EMI, they do that from the bank and not the network provider