This bundle P/N states it includes 50 seats. But I still think you need the DLUs for the actual phones. So what does that 50 seat limit actualy mean? is there some kind of seat license that prevents you adding more than 50 users (i.e.nothing to do with actual phones).
Just wanted to add a Link to the great tips supplied by Paolo :)
BE contains software and the first 50 seats. Each seat includes a CUCM user and a VM box. These are permanent licenses.
Organizations can select one of the base packages. The Cisco Unified Communications Manager Business Edition base packages bundle the Cisco MCS 7828 appliance with a preloaded software suite and seat licenses for the first 50 users. The seat licenses included in the base package cover the server licenses, mailboxes, and ports needed for the initial system. Note that these seat licenses do not cover phone or device licenses.
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.