If I am reading what you are asking correctly, you can use the external mask to change the outbound caller id per phone. Although I have all of my set to our main number (which is an auto attendant) I could choose to display the actual number.
On the FXO, I only have a 4-digit d.i.d. number for routing purposes, not for display purposes.
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.