New Prefer vowifi not working

[eng333]

Using 14 Ultra with 1.0.15 rom.
I tried *#*#869434#*#* and enabled the "Make calls using Wi-Fi" option. it says it will do it "whenever possible"
I find that it never uses voWIFI. I have to enable airplane mode and connect to WIFI, in order to use WIFI for a call.

Note, I do have "Use voLTE" checked as well, but the entire setting is greyed out. Not sure if that affects anything.

 

[gogocar62]

In addition to activation, do you also have "prefer VoWIFI" set?

 

[eng333]

In addition to activation, do you also have "prefer VoWIFI" set?

I don't have that option on my screen. I dont have "Use voNR" either.

 

[arosado]

In addition to activation, do you also have "prefer VoWIFI" set?

Can we get more assistance on this? My wifi calling sometimes turns on and off randomly.

 

[Birraque]

I don't have that option on my screen. I dont have "Use voNR" either.

If you're missing some network features these dial commands can help:

*#*#726633#*#*
- Enable 5G SA Network option

*#*#34834#*#*
- Enable Prefer 5G option in the Preferred Network Type if supported by your SIM Card (Carrier)

*#*#8667#*#*
- Enable VoNR (Voice Over New Radio) option when 5G NSA/SA network

*#*#86583#*#*
- Enable VoLTE (Voice Over LTE) option when 4G/LTE and 5G NSA/SA network

*#*#869434#*#*
- Enable VoWiFi (Voice Over WiFi) option when 4G/LTE and 5G NSA/SA network

NOTE: Check if your line has the VoWiFi provisioned on your line in the Carrier side too... *#*#4636#*#*

 

[eng333]

I have all that enabled. VoWIFI works.
The issue is that it is not "preferred" because I lack the option "Network Preferences: prefer wifi" and thus vowifi only works when I turn on airplane mode (and wifi)

 

[arosado]

Found something that may be useful.

We have:
*#*#34834#*#*
- Enable Prefer 5G option in the Preferred Network Type if supported by your SIM Card (Carrier)

However, I've noticed that occasionally the phones preferred Network Type resets itself.
Type: *#*#4636#*#*

and inspect your phones preferred network type, select: NR/LTE or depending you can select a different one but make sure NR/LTE is selected. It triggered my (VOWIFI) to turn on.

Is there a possible way to force this to stick or stay on? Possible bug or is this a carrier thing?

 

[eng333]

I have "Prefer 5G" OR "Prefer LTE" but not NR/TE option.
VOWIFI turns on if I have airplane mode on.
My issue isnt with "preferred network type" (ie. "Prefer 5G"), it's with "Network preferences" missing so I can't select "Prefer vowifi"