GUI files are version-specific; ensure you are downloading version 12.0 to match your router's Cisco IOS 15.7M or compatible software. Why Use Version 12.0?
Since this is a raw .tar archive (non-compressed), you can extract it using the standard tar command: cme-gui-12.0.tar download
mv cme-gui-12.0.tar cme-gui-12.0.tar.gz gunzip cme-gui-12.0.tar.gz GUI files are version-specific; ensure you are downloading
The core web-driven interface files for provisioning phones and managing basic CME tasks. GUI files are version-specific
sudo yum install ncurses-devel
The file refers to the Graphical User Interface (GUI) software for Cisco Unified Communications Manager Express (CME) version 12.0.