You can implement overhead paging through a conventional paging system (via amplifier) with an analog interface on a router/vg200. Whether or not you need an FXS (station) or FXO (office) interface will depend on your paging system. The FXS interface would be one that provided dial tone to the paging system. However, many paging systems now are the station side so that you can simply hang an analog phone off of the paging system and use it to call paging regions.
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.