Originally Posted by jonmorris:
“As I said in the EE thread, that IS a solution but there's more to it than that. There needs to be an IMS stack on the phone too, and each manufacturer is doing their own - and there are compatibility problems.
That's the real reason we've had this in Android for so long and yet we don't have VoLTE running like setting up a APN for mobile data.
When I spoke to someone within EE, I could sense the frustration - but EE, and likely others, are putting on the pressure for manufacturers to honour contractual obligations (I assume EE required all phones it has sold for some time to be ready, for example) and it seems that things are slowly beginning to happen.
EE won't ever adopt an app based solution as a stop-gap, citing how buggy inTouch (and others it has looked at) can be, and the need for a separate dialler, but as Three has adopted an app, why can't it at least enable it for the many phones so far not supported - for whatever reason?”
Admittedly I have no idea how the IMS stack functions (Though if you know of any reading material I'd love to learn more), though having a different stack for each network seems like a nightmare. It's a real shame that it doesn't work much like an APN. How does it work on iOS with the carrier config updates then? Have Apple implemented multiple stacks?
It's really frustrating knowing as a 3 customer that I could pop an EE sim into my Google Store 6P and have WiFi calling work straight away without an awful outdated app running in the background. I'd be extremely happy if they let me on the 800Mhz network too as I don't get any signal in my living room on 3G or 4G, seems like another odd choice.