Cannot answer incoming calls - restoring from backup fixes temporarily

[cfaulk1730]

Hello,

After an indeterminate amount of time, sometimes hours, sometimes days, our 3CX server stops allowing us to answer calls. The calls are delivered to the phone app, we can see and hear it ringing, but hitting answer, or sliding the green answer button does not answer the call, the slider just drops back into place and the phone continues to ring until the call fails. Restoring to a previous backup solves the issue temporarily.

Currently running the latest build, been having to restore to a working backup, then updating to the latest build, and creating a new backup on the latest build to stay up to date, but the problem persists.

Any help is appreciated,
Eric


Device Info
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Phone Model: Samsung Galaxy S9+
App Version: 16.4.3.131

Additional details
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Connection: 4G LTE
Server OS: Raspbian Debian

 

[leejor]

I would do two things to start with...

Conform that the 3CX Firewall Checker passes all tests.

...and examine the 3CX Activity log of the failed call, and compare to the same working call, after you have done the restore.

 

[cfaulk1730]

Thanks for the reply! The firewall checker does pass all tests, however I will run a fresh one to be safe. I just reset it last night, so I'll will have to wait until it fails again and I will capture what information I can and report back.