We have Ooma GRP2602P VoIP phones installed on our ships for crew use.
The phones stopped working some time ago. If we plug the phone directly into our Starlink router, it works fine, but if we connect it to the rest of the network - all controlled by our Balance 305 - we get nothing.
We tried different SIP settings, and adding every possible Ooma port/protocol to the inbound and outbound firewall settings…no change.
305 firmware is up to date.