Hi, I have FRITZ!Box Fon WLAN 7050 Annex A, Firmware version 14.04.26, and when I try to connect to ISDN/Analog my normal Fixed line (not ISDN). I made a cable to convert 4 Pin RJ11 to 8 Pin RJ45, connecting to pin 1 and 8 of RJ45. But when i try to use the fixed line it's allways busy, and when I make a call to my fixed line it calls...calls....calls... and the Frizt!Box don't give any sign. Only one or two times the line ring, I answer the phone and busy sound. Can some one help me? :noidea: Thanks, R.Caridade.