I need some help with Fritz!BOX Fon 5050. I bought it recently from a guy who already did some modifications on its firmware for use with POTS line. Just to notice that it is black box HW 2000 2313 due telnet says its avm, some German forums indicate this number as 1und1 [UI] model.
So when I received it, it was English Annex A. Due I have 2xBRI ISDN at my home I needed it to be Annex B so I did flash to recovery 12.04.31 exe image. After it, telnet was reporting it as Annex B and web interface as Annex A so I did telnet command for switching to Annex B and after it web interface was reporting it as Annex B.
From this moment I was trying several combinations to connect Fritz unit to mine NT [Greek NetMOD device] without any success. Just to make notice that I dont own ADSL connection and I do not plan to use Fritz for that purpose. Only thing way I need Fritz is to have caller ID at my Windows 7 x64. NetMOD does not have drivers that support my operating system so this is nice solution and maybe in future I switch from cable to xDSL so it leaves me some nice options. Other thing I am not sure about is can I use Fritz as ISDN modem? That would be nice for an alternative connection in some rare situations when cable fails.
Ok here is picture of NetMOD and Fritz how I did connection:
First I would like to explain things about NetMOD. It is ISDN NT + ISDN modem. Main line, from wall, is connected under it as shown at picture in its B section. Section A is user frontend, as you can see first is power cord, than 2xS0 lines which are reserved for ISDN telephones, than USB and Serial connection and at the end ab1 and ab2 are connections for analog phones.
Ok, I tryed several different combinations, but from what I understand combination of connecting as shown at picture should work. Only problem is that I dont have RJ-45 to RJ-11 adapter so I did connection with 4 wire ISDN RJ-11 cable. Maybe this is issue of whole mess, if so can anyone post me schematic of such adapter please?
Anyways all I get when connect analog phone to Fritz is, what Fritz manual says, Internal Dial Tone. If I press any number at telephone I get instant Busy signal, except when I press number 1 I get ringing!?
Any ideas about it?