I'm interested in purchasing an unlocked Sony Xperia phone to use with Ting.
Perhaps a Sony Xperia L2, a Sony Xperia XA2, or a Sony Xperia XZ2 Compact.
I would most likely be buying from Best Buy.
How well supported are these phones with Ting?
It is absolutely critical that I have wifi calling support. It would also be helpful to have Voice Over LTE.
I'm also interested in knowing the status of other features, like HD voice, video calling, visual voicemail, etc.
I'm assuming that all of those phone options support the current state-of-the-art of cellular data coverage (is it called 5G now?), whatever the most-current standards are, can you confirm?
On a side note, I'd like to encourage Ting to carry and sell Sony phones themselves, either to supplement your existing brands or even to replace one. My impression is that the Sony phones are competitive price and feature-wise, they seem to review well, but they also have much better support for open source than most brands. This last feature provides long-term value to customers, by increasing the chances that there will be usable Android support for phones after the disturbingly short period of times most manufacturers provide official support for.
Oh, by the way: I did check out before https://help.ting.com/hc/en-us/articles/115015306967-GSM-Devices-Capable-of-Wi-Fi-Calling posting, but I suspect it is out of date. Given other posts that I've seen in this forum, the language about "The phones must be T-Mobile branded unless stated otherwise" doesn't seem to be entirely accurate.