[Asterisk-Users] Asterisk + ISDN4linux connectivity

[Martin Mielke]

Hello again,

I guess I solved part of my problems...
Now I can call an internal extension which matches a cell-phone using 
the ISDN-card... but Asterisk refuses to call:

---
    -- Executing Dial("SIP/mmielke-b282", "Modem/g1:yyyyyyyy") in new stack
    -- Called g1:yyyyyyyy
Mar 29 19:20:34 WARNING[655376]: chan_modem_i4l.c:355 i4l_read: Device 
'/dev/ttyI1' lacking dialtone
    -- Hungup 'Modem[i4l]/ttyI1'
  == No one is available to answer at this time

---

which is false. I mean: my cell-phone is available and the ISDN-card 
should be "listening" to a dialtone, as I checked it with an 
ISDN-(hard)phone...

...aaaarch!... I need more tea! ;)

As always, ideas/suggestions/hints are much appreciated.


Regards,
Martin


Martin Mielke wrote:

> Hi all,
>
> I configured Asterisk as shown in 
> http://www.voip-info.org/wiki-Asterisk+ISDN4Linux
>
> The box running Asterisk under SuSE 9.0 Pro has a "Eicon Diva Server 
> BRI 2M" ISDN card attached and it seems to be recognized by the system.
>
> I added the following lines to:
>
> * modem.conf
> driver=i4l
> ...
> group=1
> msn=+34xxxxxxxxx
> device => /dev/ttyI0
> device => /dev/ttyI1
>
> ---
>
>
> * extensions.conf
> TRUNK=Modem/g1
> ...
> exten => mmielke,1,Dial(${TRUNK}:0yyyyyyyy) ;yyyyyyyy is cell-phone 
> number...
> ...
>
> ---
>
> With all this, I get the following error messages when starting Asterisk:
> ---
> ...
>  == Parsing '/etc/asterisk/modules.conf': Found
> [chan_modem.so] => (Generic Voice Modem Driver)
>  == Parsing '/etc/asterisk/modem.conf': Found
>  == Loading modem driver chan_modem_i4l.so => (ISDN4Linux Emulated 
> Modem Driver)
> Mar 29 16:36:33 WARNING[16384]: chan_modem_i4l.c:151 i4l_init: Unable 
> to set MSN to +34yyyyyyyyy
> Mar 29 16:36:33 WARNING[16384]: chan_modem.c:396 modem_setup: Modem 
> Initialization Failed on '/dev/ttyI0', driver i4l.
> Mar 29 16:36:33 WARNING[16384]: chan_modem.c:736 mkif: Unable to 
> configure modem '/dev/ttyI0'
> Mar 29 16:36:33 ERROR[16384]: chan_modem.c:930 load_module: Unable to 
> register channel '/dev/ttyI0'
>  == Unregistered channel type 'Modem'
> Mar 29 16:36:33 WARNING[16384]: loader.c:312 ast_load_resource: 
> chan_modem.so: load_module failed, returning -1
>  == Unregistered channel type 'Modem'
> Mar 29 16:36:33 WARNING[16384]: loader.c:358 load_modules: Loading 
> module chan_modem.so failed!
> ---
>
>
> Then, because ISDN devices are "seen" as /dev/ipppN, I modified 
> modems.conf to have these two lines instead:
> ---
> device => /dev/ippp0
> device => /dev/ippp1
> ---
>
> But when I launch Asterisk, it never goes beyond this point:
> ---
> [chan_modem.so] => (Generic Voice Modem Driver)
>  == Parsing '/etc/asterisk/modem.conf': Found
>  == Loading modem driver chan_modem_i4l.so => (ISDN4Linux Emulated 
> Modem Driver)
> ---
>
> This is a CPU-grinder, as it reaches a 99.9% usage and the only way to 
> stop this is hitting ctrl-c...
>
> On the messages file I see:
> ---
> Mar 29 16:35:22 pbx kernel: ippp, open, slot: 2, minor: 0, state: 0000
> Mar 29 16:35:22 pbx kernel: ippp_ccp: allocated reset data structure 
> c5480000
> Mar 29 16:35:50 pbx kernel: ippp_ccp: freeing reset data structure 
> c5480000
> ---
>
> Am I overseeing anything obvious?
>
> Every hint on this issue will be much appreciated.
>
>
> TIA and regards,
> Martin
>
>
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