Any one having this problem.
The Grandstream Firmware revision is 18.104.22.168.
We have the registration time set to 5 minutes, and every time after a
reboot, the BLF’s will initially indicate the correct state, then stop
working a few minutes later.
The workaround has previously been to reboot twice. The 2nd time just after
the BLFs’ stop working.
I have a patch for this, that’s available at