hello! I am trying to setup fritzbox to intergrate with 3cx. the fritzbox is connected via LAN to my first router (dlink) . The pc with the 3cx is also connected on the dlink. so far i managed to register 2 extensions on the pc with 3cx, using 3cx sofrphone and x-lite. I made 2 more extensions for fritzbox but i cannot register them. I used similar configuration on the fritzbox as those i used with x-lite and 3cx soft phone. what an i doing wrong? should i use a different config? Btw i tried also to register an extension with a softphone on my PDA (which is connected wireless to the dlink mentioned above). Again the extension is not registered. So how is it possible to register an extension on a machine with a different internal IP than the pc with the 3cx? I am using 3cx version 7.0.4744.0, free edition. thanks!