1: forget call logs (if you don’t know off-hand why this happening
I’ll understand. We don’t need any SIP capturing or call logs to figure out this boggle.
REASON
This was an issue in the past: with other .ISO releases, and the fix was to upgrade the ring group module, but in this case, no upgrade exists because the .ISO is so new (I think).
MORE DETAILS:
2: If incoming calls are sent to a ring group:
the calling party hears NO ringing on their side.
The extension receiving the call hears ringing on their phone
3: If incoming calls are sent directly to an extension
the calling party hears ringing on their side (normal and good)
The extension receiving the call hears ringing on their phone
Refusing to provide logs is an interesting troubleshooting choice. Have you even tried to see if RG has a module update available? Just because a module received an update doesn’t mean it’s immediately in the ISO