The question was, if you are able, from a Cisco IP Phone, to call the fax connected to the ATA and if the fax machine answers.
Same question, but now when you call, not from a Cisco IP Phone, but from an external phone (for example, a cell phone).
These two questions help understand if the fax machine answers or not the call. If the fax machine does not answer the call, it may be a problem with the fax machine configuration. If the fax machine answers the call, it should be a problem with the settings of the CallManager (problems with internal faxes) or VoIP Gateway (problems with external faxes).
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.