Using the MTNL adsl+ 2730u dlink router for ln2cable

Messages
4
Location
Mumbai
ISP
In2net ktv
How can this router be used which has a incoming rj11 jack which came for mtnl .
I now want to use it as PPPOE router and share it over wifi using this router? I am unable to get it working even aafter configuring the pppoe mode etc.
Does it require a simple wifi only modem? But why such an advanced router cannot be used?