I got a little bit confuse regarding the phone registration to the CUCM.
Here is the senario.
There are 2 companys, A and B both have CUCM, there is a direct link at company B to A, I brought a phone from company A and plug in, the port I plugin has company A data vlan and company B voice vlan, I manully changed the ip address, default gateway and TFTP server on the phone that point to company A, but the phone can not register to company A's CUCM, it keeps trying to register but failed.
Once I remove the voice vlan on the port, the phone can register without problem.
what confuse me is what does the voice vlan do to prevent the phone register to company A's CUCM.
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.