ISDN4BSD (HPS version) is going into ports

[Hans Petter Selasky]

Hi,

On Tuesday 11 September 2012 15:58:27 Andreas Longwitz wrote:
> Hi Hans, thanks for reply !
> 
> >> Problem 1: If I take up the receiver of a ISDN telephone I do not hear
> >> the dial tone. I hear nothing. I can dial and that works. The phone
> > 
> >> sends a SETUP messagewant_s and asterisk/isdn4bsd answers with SETUP ACK:
> > You need to check the settings in capi.conf for chan_capi. It should tell
> > I4B to provide a dialtone.
> 
> I have checked capi.conf and did not find something usefull for
> dialtone, but your statement gives me the correct hint:
> 
> In struct i4b_controller is a bit called no_layer1_dialtone and this bit
> is never initialized, therefore it is zero. In dss1_l3fsm.h the variable
> want_dialtone gets value 1 and the call
>    dss1_l3_tx_setup_acknowledge(cd,NT_MODE(sc),want_dialtone)
> therefore sets the flag L3_TX_PROGRESSI and the SETUP_ACK fram created
> in dss1_l3_tx_message has the progress indicator included. Everything ok
> so far. Then I found, that the creation of the dialtone is done by the
> driver type DRVR_DIAL_GEN and therefore the i4b module i4btel is needed.
> After make config and activate "Build TEL driver" dialtone works.
> 
> I think this option should be on as a default.

Done.

> 
> >> 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
> >> 
> >> I can only see D-channel data from the NT-side, nothing from the phone
> >> and no information from any B-channel, but the phone works correct.
> >> 
> >> The hardware jumpers on my HFC-4S card of unit 8 and 9 are set to TE
> >> and I have
> >> 
> >>    isdnconfig -u  8 intr_mode pcm_64 pcm_map 0 1 end pcm_master \
> >>    
> >>               te_mode -p DRVR_DSS1_TE \
> >>               -u  9 intr_mode pcm_64 pcm_map 0 1 end pcm_master
> >>               nt_mode -p DRVR_DSS1_NT
> 
> For clarification I add that of course I first give the isdnconfig
> commands and then the cat's and isdndecode.
> 
> > This might have something to do with the default protocol selected. There
> > has been some changes in this area. Can you check the manpage of
> > isdndebug, and the protocol options available? You will need to set the
> > default protocol before opening the device nodes.
> 
> The concept of a "default protocol" is not clear to me. Please can you
> describe the difference between
>          isdnconfig -u 9 -p DRVR_DSS1_NT
> and
>          isdndebug  -u 9 -p DRVR_DSS1_NT ?
> If I try the latter, the command "cat /dev/ihfc9.0" returns with "device
> not configured".

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.

--HPS