ISDN4BSD (HPS version) is going into ports

Hans Petter Selasky hselasky at c2i.net
Sat Sep 15 12:57:37 UTC 2012


On Friday 14 September 2012 11:59:09 Andreas Longwitz wrote:
> Hi,
> 
> >>>> Problem 2: I tried to get more information for problem 1 with the
> >>>> analyze mode of isdndecode using the custom cable as decribed in
> >>>> cable.txt. I connected my ISDN phone to an "ISDN Basisanschluß" with
> >>>> my cable box between them (receiving side unit 8, sending side unit
> >>>> 9), but after the commands
> >>>> 
> >>>>     cat /dev/ihfc8.X > /dev/null 2>&1 &    (X=0,1,2)
> >>>>     cat /dev/ihfc9.X > /dev/null 2>&1 &
> >>>>     isdndecode -a -b -R 8 -T 9 -i -x
> > 
> > You need to run something like this first:
> > isdndebug -u 9 -b 0 -p P_HDLC -b 1 P_HDLC -b 2 P_TRANSPARENT
> > If it doesn't work, I will check later. A bit busy right now.
> 
> Thanks for this. The D-channel trace works correct with your isdndebug
> command, but no luck with B-cahnnels. I also tried
>  isdndebug -u 9 -b 0 -p P_HDLC -b 1 -p P_TRANS -b 2 -p P_TRANS
> and
>  isdndebug -u 9 -b 0 -p P_HDLC -b 1 -p P_TRANS_RING -b 2 -p P_TRANS_RING
> with the same result: D-channel ok, B-channels give only X'FF'.
> 
> I am not sure, if I had ever traced B-channel data in analyze mode
> successful before.

Hi,

What kind of data will you trace? If transparent, you need to use P_TRANS, 
else P_HDLC for HDLC.

If you get data/trace frames, then the tracing works. Have you checked both 
channels?

--HPS


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