I have succeeded installing Asterisk + FreePBX + Sip Trunks + AVM B1 PCIV4 on Debain 6 64bit 2.xx kernel after finding out that Ubutu Server kernel 3.xx do not support capifs (even there is no option if you recompile the kernel).
Now I can make outgoing calls fine with Sip Trunks, but I am struggling to configure an incoming and outgoing trunk to make and receive calls via ISDN. I know that I can define a new trunk and I am assuming it will be under ‘Add Custom Trunk’.
I know how to do it via extension.conf file… we have a CAPI/ dial string, but how would I do the same using FreePBX gui?
Any help would be really appreciated.