[asterisk-users] MFC/R2 detected as ISDN PRI

Martin Spinassi martins.listz at gmail.com
Wed Nov 10 10:10:42 CST 2010


On Wed, 2010-11-10 at 10:51 -0500, Miguel Molina wrote:
> El 10/11/10 10:31, Martin Spinassi escribió:
> > On Wed, 2010-11-10 at 17:10 +0200, Tzafrir Cohen wrote:
> >> On Wed, Nov 10, 2010 at 11:42:18AM -0300, Martin Spinassi wrote:
> >>> Hi list,
> >>>
> >>> I'm trying to setup an asterisk 1.8.0 with MFC/R2, but I'm having these
> >>> error messages loading chan_dahdi:
> >>>
> >>>> module load chan_dahdi.so
> >>> ERROR[9241]: chan_dahdi.c:11848 mkintf: Signalling requested on channel
> >>> 1 is MFC/R2 but line is in ISDN PRI signalling
> >> That is: "You requested [in chan_dahdi.conf] MFC/R2 signalling, but the
> >> channel has [applied from /etc/dahdi/system.conf] PRI signalling.
> >>
> >> You should probably have in /etc/dahdi/system.conf something along the
> >> lines of:
> >>
> >>    # Not sure about crc4
> >>    span=1,1,0,cas,hdb3,crc4
> >>    cas=1-15,17-31,1101
> >>    dchan=16
> >>
> >>    # also be sure to set echocan, tonezone, and such
> >>
> >
> > Thank you so much Tzafrir for your response.
> >
> > After reading your post, it gets a bit more clearer, but can't figure
> > out how to solve it.
> >
> > This is my /etc/dahdi/system.con
> >
> > span = 1,1,0,ccs,hdb3
> > bchan = 1-15,17-31
> > dchan = 16
> > echocanceller = mg2,1-240
> > loadzone = ar
> > defaultzone = ar
> >
> > And this my /etc/asterisk/chan_dahdi.conf
> >
> > [channels]
> > echocanceller=yes
> > cancallforward=yes
> > echocancelwhenbridged=yes
> > context=entrantes-pstn
> > callgroup=1
> > pickupgroup=1
> > signalling=mfcr2
> > mfcr2_variant=ar
> > mfcr2_max_ani=10
> > mfcr2_max_dnis=14
> > mfcr2_category=national_subscriber
> > mfcr2_logdir=span1
> > mfcr2_call_files=yes
> > mfcr2_logging=all
> > channel =>  1-15
> > channel =>  17-31
> >
> > Does they make sense to you?  I'm kind of messed up after review them
> > hundreds of times in 48 hours.
> >
> > Cheers,
> >
> > Martin
> >
> >
> There you are... your system.conf has:
> 
> span = 1,1,0,ccs,hdb3
> 
> MFC/R2 uses CAS signalling, not CCS like PRI links, so you can try what 
> Tzafrir suggested for your DAHDI system.conf file. I found a similar 
> MFC/R2 configuration in this post:
> 
> http://lists.digium.com/pipermail/asterisk-r2/2010-April/001760.html
> 
> Hope it helps.
> 
> Cheers,
> 
> -- 
> Ing. Miguel Molina
> Grupo de Tecnología
> Millenium Phone Center
> 
> 


Tzafir, Shaun and Miguel:

Thanks so much for your help! The config that Shaun sent worked
perfectly, and it's the same that Miguel pointed on his mail.

As I have no way to show you how happy I am finally solving this, if you
ever visit Buenos Aires, I promise you guys I'll buy as much beer/coffee
as you can take :-D

Best regards and thank you once again!

Martin




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