Upgrade WS6500 Version 2.0x to Version 2.1

1. Unzip ws6500 HA v2.1.zip
2. Procedure: 
   http://xxx.xxx.xxx.xxx:10087
    login user: xxxx
    login password: xxxx
    Upgrade the software (Control > Upgrade)
	-file name: sippd.bin
	-file name: osamdin.bin
	-file name: wwwroot.bin
	
    Click "Upload" button: 
	Display:
	sippd.bin---->Successfully
	osadmin.bin---->Successfully
	wwwroot.bin---->Successfully
	
Upgrade License key:
	Configuration > System > License
	- Serial No
	- License Key
	- Version: 2.1
		
    Click "Control > System > Restart" WS6500