Dear, Check the IOS not got corrupted by checking MD5 valueshow platform make sure all firmware matches   Boot system bootflash: .binI got same error after fixing this the issue got resolved.

Dear,In case if we don't know the old password for disaster recovery. How can we do it if you can provide me with the correct commands

Dear, Any solution I have same issue

I have a problem with CUCM version 10.5 if I transfer a call internally or outside the the phone will restarted. Any idea please