Pocophone F1 : Does it support VoWiFi ?? - Xiaomi Poco F1 Questions & Answers

As I remember, in MIUI 8, in my Xiaomi Mi5, there was option to have VoLTE and VoWiFi, but in later MIUI9 the VoWiFi was removed.
My new provider supports VoLTE and VoWiFi so the question is; Does Poco F1 support VoWiFi ?

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someone please check in wifi settings to see if wifi calling settings are present.

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tifozif1 said:
As I remember, in MIUI 8, in my Xiaomi Mi5, there was option to have VoLTE and VoWiFi, but in later MIUI9 the VoWiFi was removed.
My new provider supports VoLTE and VoWiFi so the question is; Does Poco F1 support VoWiFi ?
Click to expand...
Click to collapse
I cant turn it on though

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CluelessO.o said:
I cant turn it on though
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Click to collapse
Thank you!!!
This is the same that I get in my Mi5, the voWIFI is also disabled in my phone. It's a MIUI thing! I had the expectation that this new phone would be able to have this feature.
Disappointed by Xiaomi

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it can be enabled on Mix 2s so there must be a way to also enable it in F1

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sprkrt said:
it can be enabled on Mix 2s so there must be a way to also enable it in F1
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Click to collapse
What MIUI version? And which country have you set as Region? (Settings->Additional settings-> Region)

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tifozif1 said:
What MIUI version? And which country have you set as Region? (Settings->Additional settings-> Region)
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I dont have a Mix 2s so I dont have any more details about that.
But in anyway it has to be enabled from the carrier and then you have to configure the APN.

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And Mi5 on MIUI 8.xxx had this option but not in MIUI9 any more (current 9.6.2.0 OAAMIFD, global stable)

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CluelessO.o said:
I cant turn it on though
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Even I had the same , greyed out vowifi.
Edited my build.prop, added these lines
persist.dbg.ims_volte_enable=1
persist.dbg.volte_avail_ovr=1
persist.dbg.vt_avail_ovr=1
persist.dbg.wfc_avail_ovr=1
persist.radio.rat_on=combine
persist.radio.data_ltd_sys_ind=1
persist.radio.data_con_rprt=1
persist.radio.calls.on.ims=1
Now option of vowifi is on but can't find any settings to use it.
Also none of the Indian carriers use vowifi yet.
Edit : found settings for vowifi with Vodafone. Haven't tried yet as no access to WiFi now

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tifozif1 said:
As I remember, in MIUI 8, in my Xiaomi Mi5, there was option to have VoLTE and VoWiFi, but in later MIUI9 the VoWiFi was removed.
My new provider supports VoLTE and VoWiFi so the question is; Does Poco F1 support VoWiFi ?
Click to expand...
Click to collapse
You can try the build.prop edit mentioned in the post above and test if it works or not.
After build prop edit , go into settings, Network and sim, click on the sim and in the end u will find vowifi settings
Pls test and confirm.

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sanjay0501 said:
You can try the build.prop edit mentioned in the post above and test if it works or not.
After build prop edit , go into settings, Network and sim, click on the sim and in the end u will find vowifi settings
Pls test and confirm.
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Click to collapse
I will when I get the Poco on hand. I don't have it yet.
Does this method requires unlock/root?

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tifozif1 said:
I will when I get the Poco on hand. I don't have it yet.
Does this method requires unlock/root?
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Click to collapse
Yes build.prop can only be edited with root permissions

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sprkrt said:
it can be enabled on Mix 2s so there must be a way to also enable it in F1
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Click to collapse
There is not an option for the Mix 2s, all radios greyed out, even VoLTE, even though my carrier supports both VoWifi and VoLTE.
sanjay0501 said:
Even I had the same , greyed out vowifi.
Edited my build.prop, added these lines
persist.dbg.ims_volte_enable=1
persist.dbg.volte_avail_ovr=1
persist.dbg.vt_avail_ovr=1
persist.dbg.wfc_avail_ovr=1
persist.radio.rat_on=combine
persist.radio.data_ltd_sys_ind=1
persist.radio.data_con_rprt=1
persist.radio.calls.on.ims=1
Click to expand...
Click to collapse
So I tried this, and it is obviously not for my phone. I have a Mix 2s, I do not claim to be a developer at all, but if you could possibly throw some information my way, I would love to try and get this enabled on my Mi Mix 2s and test.
Question however, are you on MIUI when you edit this? I was on custom AOSP ROM, not MIUI when I put these in. Wondering if that may be why, but again, not smart enough to figure out on my own, but smart enough to follow some directions.

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VoWifi is working fine on Poco, at least with German Telekom, O2 and Vodaphone. Root is required. In the Screenshot you can see the VoWifi icon active. And the settings are there too. VoLTE is good also.

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Edit: Does not work on MIUI Global for the mix 2s. I looked at the build.prop file for my device and it shows that VoLTE and WiFi are not supported in the OS, so editing the build.prop wouldn't work anyways to enable the radio. Was hoping to honestly just get the radios able to be toggled so I could try them out.
SatBandit said:
VoWifi is working fine on Poco, at least with German Telekom, O2 and Vodaphone. Root is required. In the Screenshot you can see the VoWifi icon active. And the settings are there too. VoLTE is good also.
Click to expand...
Click to collapse
This edit in build.prop is working on Poco, looks like your are running MIUI, not custom ROM correct?
I have only tried this on AOSP, in hopes whatever was needed was pulled in from device tree. I will try to add this running MIUI build.prop and cross my fingers.
Sent from my Mi MIX 2S using Tapatalk

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noobtoob said:
Edit: Does not work on MIUI Global for the mix 2s. I looked at the build.prop file for my device and it shows that VoLTE and WiFi are not supported in the OS,
Sent from my Mi MIX 2S using Tapatalk
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Click to collapse
Dont know about aosp, but in miui even dialling *#*#vowifi#*#* shows me vowifi settings even without build.prop edits, of course doesn't work cos indian carriers don't support it yet.

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https://forum.xda-developers.com/poco-f1/how-to/guide-activate-vowifi-wlan-call-t3871263

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sanjay0501 said:
Dont know about aosp, but in miui even dialling *#*#vowifi#*#* shows me vowifi settings even without build.prop edits, of course doesn't work cos indian carriers don't support it yet.
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Click to collapse
Yeah, the dialer code works on miui, but only for VoLTE. My goal is to get it to enable to enable WiFi calling, even just the radio. I tried the build.prop edit line by line while on miui, just ends up soft-bricking the device. Tried the *#*#vowifi#*#* method too. I think it works on the china models just fine, but not the global (mix 2s, not Poco). I checked everywhere in miui for settings even remotely related, and they were nowhere to be found. Pretty sure they straight up just designed the global version to not have this feature at all. Luckily mounting system, pushing the correct file and setting permission makes it a quick recovery. Unfortunately none of the radios enabled at all.
@sanjay0501
So yeah, it was my fault completely soft-bricking my device like 10 times because I forgot to fix permissions on the build.prop file after the edit (facepalm). The irony is, I remembered to fix every-time I pushed the working build.prop file after the restore.
@der_Kief
I'm going to try to get my radio fixed modifying the instructions for a US based carrier, now that the fog over my brain has cleared up a bit.
Making progress... I am at work without the original cable and cannot get my device to be recognized as a com port with the cable I am using. Hoping when I get home I can fix this ASAP, as I desperately need some WiFi calling.
Sent from my Mi MIX 2S using Tapatalk

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With Global Stable 10.2.2.0 or with the latest Global Dev Roms there is VoLTE and VoWiFi support at least with Greece's Cosmote carrier. Using:
dial *#*#86583#*#* (for volte - should state "disabled" in the message)
dial *#*#869434#*#* (for vowifi- should state "disabled" in the message)
dial *#*#4636#*#* for information
Also in the APN settings you should also add the string ",ims" so that the string "default,supl" to become "default,supl,ims". Like: