If you have any questions regarding the use of your own router, please contact the device manufacturer's customer service. 
Please note that this device does not have an integrated modem and is therefore not suitable for DSL or cable connections.

This is a simple WiFi Router. What would you configure.

Connect the Router to your existing Internet Modem/Router and expand you existing network.

Configuration could be find e.g. at https://www.youtube.com/watch?v=cDss7lVkqbo

If you want a inexpensive DSL Router buy a FRITZ!Box 7520 from eBay.

No this is not only repeater this is a router. 

But the router is useless without a modem for DSL/Cable/LTE/Fiber.

Hey @khambayatj,

I think schluej got you the right answer here :) You may want to consider changing the device. 

Greetings,
Flo