Calm down. I don't think you get what I mean here.
Of course I know what is VoLTE.
What I meant in that reply is, all along whenever I use certain methods to force my phone to connect to 4G-only network which I don't want it to fall back to 3G/2G due to whatever reasons, the VoLTE will not work even it is connected to a 4G network, regardless of signal strength and location.
Why force 4G? Because 4G's browsing speed is generally still faster than 3G, and I don't want my surfing experience to become slow due to fallback to 3G; have to wait till it switches to 4G automatically.
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Meaning, if there's no 4G in my area, I rather make it stay as poor signal (1 signal bar), I also don't want it to fallback to 3G/2G, as if 3G and 2G network does not exist.
What I know from other telcos is, you can force 4G on Yes 4G, Unifi Mobile and U Mobile, and VoLTE will still work as usual. But for Digi, Celcom and Maxis unfortunately, it's the opposite.
If you force 4G on these telcos, VoLTE (except Celcom and Maxis) indicator won't show on phone's notification bar (meaning it's not being activated) even I'm on 4G network.
I'm able to surf Internet on force 4G, but if I try to make a call, it will immediately end the call without any dialling tone, and any receiving calls will automatically rejected, since VoLTE is not activated by itself.
Previously, Digi's VoLTE will only work if I set my network mode to "Automatic (4G/3G/2G)" or Automatic (4G/3G)".
Err nope. Not about phone's problem. It's the telco.
But now I realise, now the Digi's VoLTE function are able to work even if I force it to connect to 4G-only network, which is a really good news to me and all of us, as we no need to bother if the call would fallback to 3G/2G due to whatever reasons. But yes, if you say if I go out of 4G coverage, then that one don't say la.
calm down bro. i also noticed this recently due to bought a samsung phone.
but i dun think UM able to get volte if set 4g only previously...
nvm, as long as this issue fixed and we can always stuck at volte/4G.
3G/2G sux! even the voice quality too.