Phones do NOT ring when have incoming Signal Voice Call

Guidelines

• I have searched searched open and closed issues for duplicates
• I am submitting a bug report for existing functionality that does not work as intended
• This isn't a feature request or a discussion topic

Bug description

I and many of my contacts are all having the same problem.
Signal does NOT ring when receiving an incoming Signal Voice Call.
When you try to post a help request, you just get back an automated response that indicates that 7.35.0 is not the latest version. But that is the only version you can get from Google Play. I found 7.36.1 on GitHub and installed the APK, but the problem still remains. I do not know if this is an app problem or a server problem. Signal text messenging has been slow for the past few days and even small attachments take forever to upload. My contacts are experiencing the same issue and they are all over the world. All other apps on my phone are working normally including SMS/MMS/RCS and Voice Calls by cellular and WiFi. Please investigate this issue. Thank you.

Screenshots

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Device

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Android version

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Signal version

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Link to debug log

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The issue names no files, tests, device details, Android version, Signal version, or debug log. Start by collecting those details and reproducing an incoming Signal voice call, then determine whether the missing ring is in the Android app or a service interaction. Done means incoming Signal calls reliably produce a ring under the affected conditions.