DAHDI incoming/outgoing

Hi, I have issue with incoming calls via FXO, most of calls not disconnecting.
I solved this problem using :

but now the issue in outgoing calls, if the callee is not answering in 2-3 rings, the call disconnect !

removing the values busydetect &busycount solves the outgoing issue but again incoming calls hang

please help.

If you want good disconnect supervision, use ISDN rather than analogue.