The 7590 can be used as a DSL or WAN router. WAN = WAN RJ45 connection is in any case compatible worldwide. However, it requires an upstream "modem" or "router" from the Internet provider. This modem or router is then used solely for communication with the Internet provider and the 7590 organises its entire in-house network. If you want to connect DSL, you must clarify which standards apply in Turkey. The 7590 is available in a CH and a D version. The CH version is mainly used in CH and A. It is probably easiest for you to use the first version with a minimal device from the provider as a direct connection and then connect the 7590 via the WAN port. Attention: The menu structure of the 7590 changes depending on the choice of Internet connection; i.e. other configuration fields are visible. The AVM web pages are highly recommended and detailed. Good luck and success with your new 7590. - DS
