This mailbox gets full as expected pretty fast so I clean that up occassionally or setup message aging policy.
But I want to know if I go under Greetings and enable"Hang up" option after the Greeting is played for standard as well as closed greeting will that work.It doesn't seem to be working for me. Messages are still coming through.
That will work for calls that hit the mailbox directly. It's also possible that there is a call handler with the Operator mailbox set as the message recipient. Check under the call handlers Edit > Message Settings menu.
Also, if memory serves, the operator mailbox is a member of the Undeliverable Messages distribution list. This DL should only receive messages if you have something misconfigured within the system (e.g. you didn't adjust the Opening Greeting after greeting action). It should always have at least one member so the messages can be recognized and routed to their appropriate destination until you fix it.
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.