how can i add static IP in Nokia Lumia 630 ??
Currently there is no option in settings. Is there any other way where i can directly insert static IP in system through any software ??
Go to settings > wifi. On the bottom of the screen, you would see a button >Static IP. Click on the button, and you would be able to specify the IP address, the subnet mask, the gateway and the DNS.
I have been using the same behind my corporate proxy and DNS, which have DHCP turned off and require each connecting device to have a static IP.
This feature seems to be availiable only for certain phones with Windows Phone 8.1. See also the suggestion for this feature on the Windows Phone UserVoice site.