Re: Troubles with voicegateway - cannot hear incoming voice
try to ping the phone from the router.
I think you will not get reply. when you have one-way voice you should think about the connectivity. maybe there is no route from the voice gateway to the IP phones, or firewall, or something like this.
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.