I recently purchased the global version of the Mi 9T Pro and I am running stock MIUI Global 10.3.2 with US T-Mobile as my provider. OOTB the phone does not have a WiFi calling option. Since this is useful to me when traveling outside the US or in areas where I have WiFi but poor cell reception, I searched for a way to activate WiFi calling on this phone. I searched the XDA sub forum for the phone, but did not find any relevant threads (so apologies if this has been posted before). I did find a useful thread started by XDA member lightcao in the Xiaomi Mi 9 sub forum:
https://r.tapatalk.com/shareLink/topic?url=https%3A%2F%2Fforum%2Exda-developers%2Ecom%2Fshowthread%2Ephp%3Ft%3D3917887&share_tid=3917887&share_fid=3793&share_type=t&link_source=app
Based on the suggestions in this thread and other information, I did the following:
1. Ensured that my T-Mobile account had an e911 address listed.
2. Enabled WiFi calling option using the dialer code provided in the thread and activated WiFi calling under the sim card settings (new option appeared).
3. Updated the T-Mobile APN with the APN types as suggested. At this point WiFi calling worked, but only in airplane mode with WiFi enabled. This was because after enabling WiFi calling, the Network Preferences defaulted to WiFi Only with no apparent option to change it (grayed out).
4. Installed QuickShortcutMaker (sika524) from the Play Store. With this app I could access the Network Preferences setting and change it to WiFi Preferred. Although the grayed out setting in the phone is still showing WiFi Only, phone is now working based on WiFi Preferred and I can see the WiFi calling icon in my notification bar whenever I have a WiFi connection.
Although this is specific to US T-Mobile, in the referenced thread people with other providers and in other countries suggest it is working for them as well, as long as the provider supports WiFi calling. Hope this helps others interested in WiFi calling on their Xiaomi Mi 9T Pro.
I used the same method a while ago in mi9t pro to enable wifi calling on O2 uk network but i didnt need to do all the other stuff i just entred the dialer codes and it started working. I think this is the case with most miui based roms because it was the same with my Mi6.
Related
Hello,
I travel a lot for work from the US to China. In the past, I've utilized wi-fi calling on my LG G4 on Sprint for texts / voice capabilities. Sprint doesn't allow wifi calling in China, but there was an easy work around: I would VPN to a US based location (needed to access anything google), connect to wifi, turn on global roaming and then use a fake GPS locator app set to somewhere in the US. When used in tandem, I was able to to connect to wifi calling just as if I was in the states. I've done this successfully for the past six trips to china over the past year, end of April being the latest.
On my current trip to China, I've been unable to connect using this method. The Wifi calling times out and gives an notification error in the status bar "wifi calling is not allowed in this country". Does anyone know what may have changed in the past two months? I believe Sprint does its locating via Google (one of the main reasons wifi calling doesn't work here) but that shouldn't be an issue if I have VPN access and can utilize the suite of my other Gapps.
Does anyone have any other ideas or settings I can tinker with to try to get this to work? One time I was able to pull up a screen that I've never seen before titled "self service" and it mentioned something about setting 911 location, but I've never had to mess with that in the past. Was there a recent ROM update that I may have downloaded over the past couple of months that would have prevented me from doing what I used to do (I don't remember, but maybe)?
Any help would be much appreciated. I even called Sprint to try to get my texts turned on and they just turn on global roaming and I'll be all set...I did this and that hasn't worked either. When I go to HK, I receive texts and can use data without issue, and can connect to wifi calling (confirmed last weekend).
Thanks!
-Rob
Try also calling sprint they can do a uicc unlock which would allow u to use it in china gsm if im not mistaken
I cant give no help on the wifi calling as im a gsm unlock user my wifi calling has never worked. Always get a invalid sim
I am on a fully updated Note5 SM-N920I, finally just got the service back up and running after switching it from ATT to T-Mobile. The T-Mobile supports Wi-Fi calling, as they texted me a link to fill out the E911 address, and then they checked compatibility and said it was compatible. But I don't see the Wi-Fi Calling option toggle button anywhere. I checked in Settings > Connections > More Connection Settings ; and I also checked the samsung Phone dialer app > Settings and did not find it anywhere. Is this because it is the international version SM-N920I? It's not a deal breaker, but it would be useful to have, since the signal inside is between -88 and -99 dBm, so sometimes it can get spotty and drop. I'm just glad to have a signal again (ATT was literally blocking / un-provisioning all Note5 models except their own locked ATT version SM-N920A, the bastards; I spent two weeks troubleshooting the problem and had to solve it on my own; in the end I simply ported over to T-Mobile). Anyways, if you know how to find the Wi-Fi Calling option on the SM-N920I, I would greatly appreciate it. My assumption at this point is that it was removed from options on the international versions like mine, since the feature is dependent on the carrier. But maybe it can be found in a hidden setting page somewhere? Again, I don't absolutely need this, but it would be great to have. Thank you.
Hi everyone,
Have a global version of X5 Pro.
Trying to make VoLTE and VoWIFI working on T-Mobile in US but no luck.
No toggles in SIM settings and toggles in Phone Info are grayed out.
Any ideas to activate it?
Same with me, I started another thread or two concerning this issue but I believe it has to do with T-Mobile's VoLTE/Wifi-calling provisioning relative to the Find X5 Pro's firmware?
Of course the phone supports VoLTE and WiFi-Calling, so I'm not sure why at least the latter won't work (or at least have a toggle). If you google 'how to enable WiFi calling', most people tell you to set (or re-set) your E911 address because it's a necessary feature of WiFi calling. Ive done this on the T-Mobile website AND with a support rep on the phone, but still no toggle to enable.
I haven't found anything about this outside of XDA so perhaps it's time to submit a ticket directly to Oppo.
Edit: could anyone from the EU/UK chime in on whether they have the toggle options for VoLTE/WiFi-calling? I think we need to identify whether the problem is based on region/carrier rather than the phone.
Pulled from a recent T-Mobile forum post about the same issue (but on multiple different phones):
"In order to enable WiFi calling from an unlocked phone, there appear to be several components which all need to align perfectly. The the phone must have the physical capability, obviously a WiFi antenna. It also seems to rely on VoLTE provisioned and WiFi calling provisioned abilities.
The former carrier must have unlocked the device and its IMEI for use on another carrier.
The current carrier must have enabled WiFi calling, and also configured an E911 address.
"Exactly! The firmware in the Sprint S8 is not compatible with T-Mobile’s WiFi Calling implementation. XDA might offer some work around through flashing or root, but through normal methods, WiFi Calling on such an old device that actually has carrier specific firmware isn’t going to work with a different carrier for those feature implementations. "
dipleg said:
Edit: could anyone from the EU/UK chime in on whether they have the toggle options for VoLTE/WiFi-calling? I think we need to identify whether the problem is based on region/carrier rather than the phone.
Click to expand...
Click to collapse
Vodafone Germany: Custom Firmware with VF branding, but no SIM- or Netlock
VoLTE has no toggle but is activated by default, VoWiFi has a toggle and works.
Hello
I just got this phone and set it up. Its a Global version 13.0.4 SKDMIXM.
I am on TMoblie USA - the phone is working great on LTE and 5G .
I am not able to see the Network preference under wifi calling where is can select Prefered Wifi Calling.
It appears that its running on default Prefered Cellular - because I can only see the VoLTE symbol on top.
Can someone help me in fixing this configuration to select Prefered Wifi Calling ? TIA
rogerga said:
Hello
I just got this phone and set it up. Its a Global version 13.0.4 SKDMIXM.
I am on TMoblie USA - the phone is working great on LTE and 5G .
I am not able to see the Network preference under wifi calling where is can select Prefered Wifi Calling.
It appears that its running on default Prefered Cellular - because I can only see the VoLTE symbol on top.
Can someone help me in fixing this configuration to select Prefered Wifi Calling ? TIA
Click to expand...
Click to collapse
Hello, I'm using a 11T Pro Dual SIM India model with India SIM in Slot 1 and TMO SIM in Slot 2.
I have not found the specific setting to make Wifi Calling "Preferred" but, my phone does indicate Vo WiFi even when I have Wifi connected and Mobile Data turned on too once Wifi Calling is enabled as below.
Apparently the Voice Over WiFi Settings (at least here on my phone) only show up for SIM 1, does not show for SIM 2.
Attached are sample screenshots where the Settings are under SIM 1.
Steps to get there-
Settings > SIM cards & mobile networks > Click on SIM 1
All the way down, last Setting is "Wi-Fi Calls" to enable "Make calls using Wi-Fi".
Hope this helps.
graphreak said:
Hello, I'm using a 11T Pro Dual SIM India model with India SIM in Slot 1 and TMO SIM in Slot 2.
I have not found the specific setting to make Wifi Calling "Preferred" but, my phone does indicate Vo WiFi even when I have Wifi connected and Mobile Data turned on too once Wifi Calling is enabled as below.
Apparently the Voice Over WiFi Settings (at least here on my phone) only show up for SIM 1, does not show for SIM 2.
Attached are sample screenshots where the Settings are under SIM 1.
Steps to get there-
Settings > SIM cards & mobile networks > Click on SIM 1
All the way down, last Setting is "Wi-Fi Calls" to enable "Make calls using Wi-Fi".
Hope this helps.
Click to expand...
Click to collapse
Thanks - I saw a post that had this diagram - In my case it has defaulted to
prefered cellular - so i dont get VoWifi
rogerga said:
Hello
I just got this phone and set it up. Its a Global version 13.0.4 SKDMIXM.
I am on TMoblie USA - the phone is working great on LTE and 5G .
I am not able to see the Network preference under wifi calling where is can select Prefered Wifi Calling.
It appears that its running on default Prefered Cellular - because I can only see the VoLTE symbol on top.
Can someone help me in fixing this configuration to select Prefered Wifi Calling ? TIA
Click to expand...
Click to collapse
Operators can disable this menu if they want to lock you onto Wifi preferred or cellular preferred. Does this only happen with this phone or does it also happen with the SIM in another Android phone?
rogerga said:
Thanks - I saw a post that had this diagram - In my case it has defaulted to
prefered cellular - so i dont get VoWifi
View attachment 5657751
Click to expand...
Click to collapse
There's a possibility of TMO-US not supporting WiFi calling on the Xiaomi 11T (Global), perhaps.
Although, I have been using various Unlocked phones (Nokia & Samsung) on TMO-US for the past few years & have practically never had issues with WiFi calling on any. Shall have to test it once I'm back. Won't be for some time.
Is your phone on the latest firmware? Try updating it to check if there's a new update available
which hopefully can solve your issue.
Couple of options to test, in case you have not already tested them-
a) leave WiFi Calling Enabled then disable the VoLTE feature and check if WiFi calling works?
b) disable Mobile Data, WiFi Calling enabled with WiFi connected and check if WiFi Calling works.
c) some users have had to ensure their E911 address is correctly in place on the TMO account too.
mici01 said:
Operators can disable this menu if they want to lock you onto Wifi preferred or cellular preferred. Does this only happen with this phone or does it also happen with the SIM in another Android phone?
Click to expand...
Click to collapse
I move from a One Plus 6 - it had the options
graphreak said:
There's a possibility of TMO-US not supporting WiFi calling on the Xiaomi 11T (Global), perhaps.
Although, I have been using various Unlocked phones (Nokia & Samsung) on TMO-US for the past few years & have practically never had issues with WiFi calling on any. Shall have to test it once I'm back. Won't be for some time.
Is your phone on the latest firmware? Try updating it to check if there's a new update available
which hopefully can solve your issue.
Couple of options to test, in case you have not already tested them-
a) leave WiFi Calling Enabled then disable the VoLTE feature and check if WiFi calling works?
b) disable Mobile Data, WiFi Calling enabled with WiFi connected and check if WiFi Calling works.
c) some users have had to ensure their E911 address is correctly in place on the TMO account too.
Click to expand...
Click to collapse
I had a working One Plus 6 - so I know TMO has VoWifi - I use it a lot due to poor reception at home .
The current workaround to force VoWIFI is
Turn On Airplane MOde
Turn ON WiFi only
then it works in VOWIFI with out any issues
I know I am missing a menu Item that can toggle this setting . I would prefer having that setting but its not a breaker for now . The phone works with all the Network features of TMO , LTE , 4G , 5G etc . No visual voicemail thats all.
Thanks
rogerga said:
I had a working One Plus 6 - so I know TMO has VoWifi - I use it a lot due to poor reception at home .
The current workaround to force VoWIFI is
Turn On Airplane MOde
Turn ON WiFi only
then it works in VOWIFI with out any issues
I know I am missing a menu Item that can toggle this setting . I would prefer having that setting but its not a breaker for now . The phone works with all the Network features of TMO , LTE , 4G , 5G etc . No visual voicemail thats all.
Thanks
Click to expand...
Click to collapse
Perhaps you might want to give this a try-
Phone Dialer- *#*#86943#*#* VoWiFi carrier check disable
From here- https://forum.xda-developers.com/t/wifi-calling-volte-on-mi-9.3917887/
(or here too https://www.hardreset.info/devices/xiaomi/xiaomi-mi-11/codes/)
graphreak said:
Perhaps you might want to give this a try-
Phone Dialer- *#*#86943#*#* VoWiFi carrier check disable
From here- https://forum.xda-developers.com/t/wifi-calling-volte-on-mi-9.3917887/
(or here too https://www.hardreset.info/devices/xiaomi/xiaomi-mi-11/codes/)
Click to expand...
Click to collapse
Thanks - this code is what got me to where I am now . I think from other articles - the mbn config may require some tweaking - but it refuses to give me access to it when i use *#*#663368378#*#*
Same access issue here too.
Wish you luck.
Pinging to see if there is a soln. in future.
Is anyone having an issue where the data network drops from 5G to 3G upon receiving a phone call?
On S21 Ultra, Telstra network.
Have tried Network Settings Reset without assistance, and the telco claims everything is enabled on their end.
I'm also unable to find the VoLTE toggle under Network Connections and cannot enable call waiting - I wonder if this is related.
EDIT: Turns out it was indeed a carrier issue. Resolved with call to Telstra.
It is definitely related. If no VoLTE is set, network will always switch back fron 4G or 5G to 3G to support the incoming call.
Setting to use VoLTE (or 'call via 4G') should be under Mobile Network settings.
You may want to check with Telstra support, as VoLTE may not yet be activated for your device/subscription or apn settings are not correctly set.
@OnnoJ Thanks for the reply. The call via 4G toggle is missing from my "Mobile networks" setting page. I've seen others have a similar issue, but have not found a solution as yet.
Can't believe it - called Telstra again and they now found VoLTE was NOT provisioned! They fixed it on their end and all is working.