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Original topic:

S9+ / Wifi Calling / O2

(Topic created on: 07-06-2022 11:39 AM)
Zacepi
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Galaxy S9 Series

I am having a problem with Wifi calling which seems to be getting worse. 

It's a Galaxy S9+ on a business contract with O2, and Wifi calling is enabled as I get no signal in my house.  

After a reboot my wifi calling will appear in settings (and Phone settings) as expected:

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After a  few hours  (no pattern but overnight for sure) Wifi calling will just stop working, and can't be found in Settings:

 

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I am missing calls as the only way around this is to reboot the phone. 

Have already raised this with O2 who have sent a new SIM card which I have installed, but no improvement.  The phone (app and system) is up to date - Android 10. 

So in my mind it's either 1) My wifi 2) S9+ hardware 3) S9+ OS  4) S9+ App  5) O2

I've eliminated as many of these as I can - 6 months ago I installed a Ubiquiti U6LR access point and my Wifi has fantastic strength all over the house. I have a spare S9+ which I have also tried, and O2 have done all they are prepared to, so I've reached the end of my troubleshooting.

Is there anything I can do to make this work reliably?

 

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