Connect your phone as follows:

• Phone socket
  Connect the telephone plug directly into the 5-pole socket.
  
• Connection point (DSL)
  Slide open one of the two clips () on the connection point and plug your telephone cable into it.
  

Depending on the type of phone, you may need to connect the power supply cord.
Your telephone is now connected.

Is your phone line not working? Then you probably have a VoIP line (Phone Line over IP).