Open your xmldefault.cnf.xml in a code editor. Ensure the tags match the exact filename of the firmware (e.g., cmterm-88xx-sip.12-5-1SR1-04.k3.cop.sgn ) without the extension. Step 2: Check File Permissions
Copy the above file, but rename it to SEP<MAC>.cnf.xml (e.g., SEP001122334455.cnf.xml ). Change the <loadInformation> to match your phone’s actual firmware. cisco ip phone downloading xmldefault cnf xml repack
Tools like or Tftpd64 can be used by selecting the "TFTP Client" tab, entering the CUCM host IP, and requesting the file. "Repacking" or Modifying the File Open your xmldefault