We just replaced a old Siemens Hicom 300 system with a Callmanager 6.1.2 and a C3845 router with E1 (EURO-ISDN) as a H323 gateway.
Now the customer requires again the "Callback to CO" feature. The Siemens system was able to send callback requests to ISDN phones on the CO side (provider Austrian-Telekom).
The callmanager offers the Callback softkey button, but when pressed a message shows "Callback cannot be activated for nr.xxx". There is not even a messages sent to the router as the debug messages show.
I know, the callback was implemented for QSIG trunks only, but is there a way to get that working for standard euro-isdn lines, too?
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.