Muzammil: I would go with Manual upgrade. Its much more safer and controlled. If you need help, I created a very detailed document, and successfully upgraded from 1.5 to 2.5. Aziz
So if you look at the SDL traces, you will see StationInit: which represent that OnHook message came from ipPhone with MAC CN90734UCM9CIPC and IP-Address 10.202.56.196. I hope this answer your questionSCCP OnHook94877777.001 |15:34:22.602 |AppInfo |S...