I've become a fan of #GrapheneOS since I overcame my disgust of Google and bought a used Pixel phone. @GrapheneOS is a great example of usable security.

It's easier to install and use than most other aftermarket #Android distributions I tried. And it has been a bug-free experience for me – until 1 or 2 weeks ago when the telephone stopped ringing when someone called. Phone calls did not even raise a full-screen notification any more. Only when I happend to watch the notification area was I able to see that someone is calling me. Most of the time, I only saw it when they had given up.

Then yesterday the phone finally rang again! Today, this was broken again. Until I found a workaround! All I had to do was to disable WiFi telephony – a feature I had enabled right after I installed GrapheneOS and which had seemed to worked well.

Update: According to @GrapheneOS, the annoyance I described is not related to #GrapheneOS but most likely caused by the carrier: https://grapheneos.social/@GrapheneOS/113046499971181147

#WiFiTelephony #WiFiCalling #Android #bug

GrapheneOS (@[email protected])

@[email protected] This is almost certainly caused by your carrier and carrier configuration, not by GrapheneOS. You should start by resetting cellular settings, and there's a high chance it will work fine afterwards with nothing else required. Carriers often make backwards incompatible changes without properly pushing it out, which is generally why things stop working with carriers on unlocked devices and then start working again after a cellular settings reset.

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