Samsung A34 5G wifi calling

[Stan]

Just joined Smarty with my Samsung A34 5G dual sim.

Wifi calling works with both sims simultaneously and 5G on both simultaneously, one is on EE and the other is Smarty.

There does seem to be an issue with Smarty going onto wifi calling, it seems to prefer to use the cellular network if the signal is good. You can force this by going onto airplane mode and manually switching on wifi while airplane mode is still on, and wifi calling comes on instantly. Not the best, will see how it goes when my number is ported over and have a chance to use it properly. Just got to switch off my voicemail now.

[Chalkychap]

I doubt this behaviour will change after switching your number to SMARTY, @Stan. 

The configuration profile provided, by EE, for your Samsung device will probably have an option to prefer WiFi Calling, when WiFi Calling is ENABLED. This option may not be available with the SMARTY network, @Stan.

[Stan]

You are correct, the prefer wifi calling option I had with the EE sim has gone with  Smarty. Although I do get a better cellular service now so it shouldn't be an issue.

The other issue I had when my number was ported was the phone number tied with the sim remained with the original number, but as others have done, I fitted the sim into an old iPhone 6 and went to conacts, and that has updated it.

[Sinkers]

It is a pity that Smarty don't implement the calling preference option between WiFi and the mobile network like other providers do. 

[GrahamS_1507134]

I'm having trouble with Callers being instantly sent to Voicemail when phone is on Wifi Calling
I am missing calls for a Hospital appt (a Private No, so I can't call back) - Grrr!!
Must I have Mobile Data on?  I'm in a very weak signal area and inside the house, but have good wifi 20MB/sec
Samsung A54 5G 

[MSF]

@GrahamS_1507134 Not sure why mobile data will affect calls or texts.

[SmartyTrousers]

No, no need for mobile data to be on for WiFi calling to work.

[Sinkers]

There is an easy solution to make sure you have wifi calling working when you want it, such as at home. Just put your phone into airplane mode and then turn WiFi back on again. As there is no mobile data connection, WiFi calling is the default, and only connection method. If you have mobile data and WiFi calling on and there is the slightest of mobile data signal, then  the phone will not use WiFi calling. You have to make sure that there is absolutely no mobile signal for WiFi calling to be activate. Don't forget to get out of airplane mode when you go outside though.  

[GrahamS_1507134]

As above, I'm worried that a caller was sent to voicemail when I was at home with WiFi calling & internet active. Can any of you gurus suggest reasons why that could happen?

I'm in a dark hole for mobile signal, so Wifi calling is essential to me

Many thanks for yr replies above

[Sinkers]

If there is any mobile signal available, even if you have WiFi calling on, you will not get WiFi calling (unless you are using an iPhone as they seem to work differently). To guarantee WiFi calling when at home, you have to turn airplane mode on and then turn WiFi on again which leaves mobile data off. Then you will get WiFi calling. 

[GrahamS_1507134]

THANK YOU @Sinkers

That matches my problem precisely, in my nearly NOT-Spot home location.

This thread is for a Samsung A34; I have an A54 and the behaviour differs a little.
On A54 quick panel, WiFi does NOT toggle off when Flight mode is turned ON.
Mobile Data isn't a switch on A54 (now Android 14); it is an indicator only, showing Flight Mode inverted.

You just have to remember always to toggle Flight Mode on leaving the house
and then again on returning Home.
I tend to have Flight Mode ON partly for Battery Saving purposes
(but I often forget to Switch Flight off on leaving home)

Could Samsung automate that? 
perhaps with a new Old/New Behaviour switch in Settings, to give the user absolute control
For example, New Behaviour
Every once per 2 or 3, minutes check
IF WiFi is ON AND has internet access THEN
 switch Flight Mode ON (=Mobile Data OFF)
ELSE
 Switch Flight Mode OFF (=Mobile Data ON)
End If

[Sinkers]

I have completely automated this. 
The first thing I did was to change the behaviour of Airplane Mode so that when it is selected or deselected it does not change Wi-Fi at all.

I did it a long time ago, so I can't remember what the ADB command was exactly but I think it was adb shell settings put global airplane_mode_radios wifi,bluetooth. What that does is to leave Wi-Fi and Bluetooth on when Airplane Mode is on. I also leave Bluetooth on so that my watch can talk to my phone.

I then used an app called Macrodroid,  which is free for up to 5 automations I think, but in fact I paid for it anyway as it was inexpensive and I was happy to help the author.

I created two macros one which turns Airplane Mode on when Wi-Fi is connected and one that turns Airplane Mode off when Wi-Fi is not connected. In fact all that does is to turn mobile data on when I'm not connected to Wi-Fi and off when I am.

This was very easy to achieve and works flawlessly.