I have an E1 (PRI) in the main office for a certain company so there are 25 branch belong to this company.
I want to know what I need of the HW and configuration to let the branches call the main office through this E1 and the cost will be covered by the E1 (make the call fee paid by the main office when a branch want to call the main office).
Since there is more than on component needed for such a complex project and variables depending on the details, your best approach would be to engage a reputable consultant, or certfied Cisco partner, for the design, quoting, configuration and troubleshoot.
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.