Open Notepad (or any plain text editor) and save this as XMLDefault.cnf.xml .
The phone will download XMLDefault.cnf.xml , realize it needs a specific SEP file, download that, and then register. cisco ip phone downloading xmldefault cnf xml repack
When you see "Downloading xmldefault.cnf.xml," the phone has: Open Notepad (or any plain text editor) and
: A "hard" factory reset often wipes the firmware, forcing the phone to hunt for a base image. cisco ip phone downloading xmldefault cnf xml repack