I have 4 lines to the PSTN connected to a FXO card, the problem is when somebody in the PSTN call and hung before they answer the IP phone, the IP phone continuous ringing and the FXO port is not released, to stop ringing and release the port, in need to off-hook the IP Phone
For our customers we prefer a disconnector circuit to fix that problem. Because it is really hard to finetune the router configuration for the parameters of signalling coming from the local carrier side -PSTN-.
In your case, I think the router can not understand the signal to end the call coming from PSTN, so please take a quick look to the document.
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.