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ctrlz
Contributor
2,404 Views
Message 11 of 23

Re: WiFi calling stopped working after upgrade to Android 11

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Could try disabling VoLTE/4g calling, and seeing if Wifi calling works then. I know some Android's prefer to use 4g calling over Wifi calling if both are enabled. Where i live i barely get any 4g so before i got an iPhone i had to have 4g calling disabled to get anywhere.

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pddco
Aspiring Expert
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Message 12 of 23

Re: WiFi calling stopped working after upgrade to Android 11

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Switching the phone to Airplane mode turns off the GSM/3G/4G radio bits so that’ll check whether WiFi Calling works or not.

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s1ms
Aspiring Contributor
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Message 13 of 23

Re: WiFi calling stopped working after upgrade to Android 11

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This issue is related to BT. Got confirmation. Apparently I am not the only one with non-working WiFi calling.

Trust me, I've tried all the above things and more before I contacted BT.

MrBelter
Expert
2,368 Views
Message 14 of 23

Re: WiFi calling stopped working after upgrade to Android 11

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You probably know this already but dial *#*#4636#*#* to see if VoLTE and VoWiFi are provisioned on the SIM.

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s1ms
Aspiring Contributor
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Message 15 of 23

Re: WiFi calling stopped working after upgrade to Android 11

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SIM is fine and everything is working if I put it in another phone. A different SIM is working on well my phone. What is not working is the BT SIM on my Note 20.

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s1ms
Aspiring Contributor
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Message 16 of 23

Re: WiFi calling stopped working after upgrade to Android 11

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What an interesting sequence of events.

Decided to get a new phone. Got Samsung S21 Ultra 5G. Same problem. Wifi calling broken!!!

 

Samsung Korea got in touch with BT network Engineers with a solution and we've got if fixed!!! Permanent fix should be released with a new firmware upgrade. 

Very good collaboration with the BT Engineer!

arjanvirdi
Contributor
2,323 Views
Message 17 of 23

Re: WiFi calling stopped working after upgrade to Android 11

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I had the same issue with my Ultra 5G. Weird occurrence, I let the phone die, and after charging and turning it, it said new network features, and to restart. After that Wi-Fi Calling, and VoLTE appeared, and worked! Also, have you installed the software update? 

 

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s1ms
Aspiring Contributor
2,313 Views
Message 18 of 23

Re: WiFi calling stopped working after upgrade to Android 11

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my problem had nothing to do with that. There is an issue with the phone firmware that has been confirmed by Samsung Korea software team 😉 Trust me, I have tried everything. The good thing is we have found the issue and temporarily fixed it while we wait for the new software.

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Ian73
Beginner
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Message 19 of 23

Re: WiFi calling stopped working after upgrade to Android 11

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I have same issue as yourself. What is the way around this. 

Cheers

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s1ms
Aspiring Contributor
2,283 Views
Message 20 of 23

Re: WiFi calling stopped working after upgrade to Android 11

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You need to add a custom APN as per below instruction:

Settings - Connections - Mobile Networks - Access Point Names - Add - 

Name: ims
APN: ims
APN type: ims (Delete "default" that was written at the beginning)
APN protocol: IPv6)

Click Save