I agree, it is a bad design.

At my place I get 5G, 4G and LTE (3 sites around me) and the phone is constantly jumping from one antenna to the other - thank you VF.

MaxineN: Additional trouble shooting step for all. If you have a 2d SIM lying around can you test both VoWiFi and VoLTE enabled on 2d and see if the same behaviour is observed. NickR1 possible to get some insight/let appropriate team know? Seems to be specifically Android 12 that's broken things on devices that are eligible.

I have a S20+ on Android 12 with a dual Kogan/2degrees SIM combo. On Wifi, my 2degrees SIM is always using WiFi Calling (as it always has through 3 different OS updates), whereas Kogan needs the Flight mode on -> Wifi On trick before it will kick in. As soon as LTE is available, Kogan will always revert back. It never worked on Android 11, but I didn't know to test the force switch trick either.

It's a poor implementation if VoLTE is always prioritized, since there are many good reasons to use VoWiFi when available over VoLTE, and it is MUCH simpler to just disable Wifi Calling if you wanted VoLTE for some reason.

MaxineN: I'd argue that its bad design. 2d has always prioritized it and so have many carriers around the world. You could be on the fringe of coverage and VoWiFi might not kick in when you want it to(you also may not notice it). Sure you could use airplane mode but then it's not seamless or will the regular user realise this bad design.

Also if you're on WiFi, it's going to be more reliable and have less latency then a on the fringe LTE connection for VoLTE.

ShinyChrome:

 

MaxineN: Additional trouble shooting step for all. If you have a 2d SIM lying around can you test both VoWiFi and VoLTE enabled on 2d and see if the same behaviour is observed. NickR1 possible to get some insight/let appropriate team know? Seems to be specifically Android 12 that's broken things on devices that are eligible.

 

I have a S20+ on Android 12 with a dual Kogan/2degrees SIM combo. On Wifi, my 2degrees SIM is always using WiFi Calling (as it always has through 3 different OS updates), whereas Kogan needs the Flight mode on -> Wifi On trick before it will kick in. As soon as LTE is available, Kogan will always revert back. It never worked on Android 11, but I didn't know to test the force switch trick either.

 

It's a poor implementation if VoLTE is always prioritized, since there are many good reasons to use VoWiFi when available over VoLTE, and it is MUCH simpler to just disable Wifi Calling if you wanted VoLTE for some reason.

 

My parallel imported S20+ (SM-G986B/DS) with a Kogan SIM performs exactly as it should. It defaults to WiFi Calling always (if turned on) and moves over to VoLTE seemlessly as you move out of WiFi range. It happily does this without dropping the call, unlike 2Degree's implementation prior to them having VoLTE. Not only that, calls are crystal clear in either mode. 

dt: Are on you android 12 as well? It appears this problem has only started with most people after an upgrade

I didn't have WiFi calling at all as an option with Android 11, until I got my Android 12 + One UI4 upgrade a short while back. Now I have WiFi calling as a switch in the Dialer settings menu and also Settings\Connections. 

Weird behaviour on my note 20 since I updated and turned on wifi. Some calls don't display when the come in, I just get a missed call, and there are sometimes odd beeps when I go to make a call. Yesterday mid call my wife said I just disappeared. I'll give it a day to settle otherwise I'll switch it off.

Annoyingly since the Android 12 update, from my messages app I can no longer dial that persons number directly as I could before.

Linux: @networkn In the messages app you will see a drop down arrow by the contact name and that has the phone icon in it

Thanks. What a dumb change to hide an icon that is so useful under one more click!

networkn:

 

Linux: @networkn In the messages app you will see a drop down arrow by the contact name and that has the phone icon in it

 

Thanks. What a dumb change to hide an icon that is so useful under one more click!

 

@networkn agree I was like this is nuts when I found it, I thought they had removed it

Linux:

 

@networkn agree I was like this is nuts when I found it, I thought they had removed it

 

I am really finding the last few years in UX design (generally) quite frustrating in many ways, the move to hiding stuff that is genuinely reasonably often used, under another click (or two or three) in the name of a clean interface seems ridiculous. At least let me choose to change it back!