I am running a coffee shop in India. I want to make it WiFi hotspot. The connection types available here are ADSL and DSL. Since there are many routers available in the market I could find only these routers D-Link Airspot DSA-3200, LevelOne WHG-1000, ZyXEL N4100 Hotspot Gateway but I don't know which is good. Can anyone suggest me a good wireless gateway routers?