sundance-communications.com Forums Telephony Discussion Phone & VoIP Systems Samsung Telephones & Systems Terminal Status Indicator stays lit, phone not busy

Another option to try is in 6.3.5 - port clear. Try clearing the port (use DB Initial) - which will take just that 1 port back to the default settings. You might have to set up station keys or forwarding again after, but it takes the port/set back to default settings. I've used that to clear flakey issues from both analog and digital ports.