[asterisk-ss7] Alignment problem with libss7

[Mitul Limbani]

You need to run signalling on mobicent side too n not have all bearer
channels. bchan=2-31, dchan=1 on Mobicent. Fix that side ... and dchan=1
instead of mtp2=1 on asterisk, Everything else looks ok on asterisk side.

Mitul

On Mon, Oct 1, 2012 at 12:41 PM, Victor Neiman
<victor at blacksheepdev.co.za>wrote:

> Hi,
>
> I'm trying to get SS7 communication between Asterisk 1.8.16.0 which has
> libss7 installed and the Mobicents Signalling Gateway , using Sangoma A101
> hardware in two boxes.  Both boxes are using wanrouter and dahdi. One box
> is running Asterisk, the other Mobicents. I have been corresponding closely
> with people at Mobicents to get the configuration right for their software
> and am fairly sure it is correct. The problem is that when I start up the
> Mobicents Signalling Gateway, Asterisk on the other side immediately fills
> up with these errors:
>
> [Oct  1 10:55:46] NOTICE[19825]: chan_dahdi.c:3437
>> my_handle_link_exception: SS7 got event: HDLC Abort(6) on span 1/0
>
>
>
> The box that is running the SGW has the following /etc/dahdi/system.conf:
>
> #autogenerated by /usr/sbin/wancfg_dahdi do not hand edit
>> #autogenrated on 2012-09-28
>> #Dahdi Channels Configurations
>> #For detailed Dahdi options, view /etc/dahdi/system.conf.bak
>> loadzone=us
>> defaultzone=us
>>
>> #Sangoma A101 port 1 [slot:4 bus:5 span:1] <wanpipe1>
>> span=1,1,0,ccs,hdb3,crc4
>> bchan=1-31
>>
>
> This config comes straight from the guys at Mobicents. All channels are
> bchan.
>
> The Asterisk side looks like this, /etc/dahdi/sysem.conf
>
> #autogenerated by /usr/sbin/wancfg_dahdi do not hand edit
>> #autogenrated on 2012-09-28
>> #Dahdi Channels Configurations
>> #For detailed Dahdi options, view /etc/dahdi/system.conf.bak
>> loadzone=us
>> defaultzone=us
>>
>> #Sangoma A101 port 1 [slot:4 bus:2 span:1] <wanpipe1>
>> span=1,0,0,ccs,hdb3,crc4
>> bchan=2-31
>> mtp2=1
>>
>
>  /etc/asterisk/chan_dahdi,conf looks like this:
>
> ;autogenerated by /usr/sbin/wancfg_dahdi do not hand edit
>> ;autogenrated on 2012-09-28
>> ;Dahdi Channels Configurations
>> ;For detailed Dahdi options, view /etc/asterisk/chan_dahdi.conf.bak
>>
>> [trunkgroups]
>>
>> [channels]
>> context=default
>> usecallerid=yes
>> hidecallerid=no
>> callwaiting=yes
>> usecallingpres=yes
>> callwaitingcallerid=yes
>> threewaycalling=yes
>> transfer=yes
>> canpark=yes
>> cancallforward=yes
>> callreturn=yes
>> echocancel=yes
>> echocancelwhenbridged=yes
>> relaxdtmf=yes
>> rxgain=0.0
>> txgain=0.0
>> group=1
>> callgroup=1
>> pickupgroup=1
>> immediate=no
>>
>> ;Sangoma A102 port 1 [slot:2 bus:6 span:1] <wanpipe1>
>> context=from-pstn
>> group=0
>> echocancel=no
>> signaling=ss7 ;this is ss7 signaling
>> ss7type=itu ;using the ITU variant
>> ss7_called_nai=dynamic ;NAI for outgoing calls
>> ss7_calling_nai=dynamic ;NAI for incoming calls
>> ss7_internationalprefix=00 ;international prefix value for incoming calls
>> ss7_nationalprefix=0 ;national prefix value for incoming calls
>> ss7_subscriberprefix= ;subscriber prefix value for incoming calls
>> ss7_unknownprefix= ;unknown prefix value for incoming calls
>> ss7_explictacm=yes ;ACM is send as soon as call enters the dial
>> plan...may not accepted yet though
>> linkset=1 ;arbitrary name for this set of channels
>> pointcode=1 ;the point code for this system...aka SPC
>> adjpointcode=2 ;the point code for the system that we are signaling to...
>> aka APC
>> defaultdpc=2 ;the point code for the system that the CICs will be
>> negotiated with...aka DPC
>> networkindicator=international ;NI value for MTP3
>> cicbeginswith=1 ;the starting value of the CICs
>> channel=2-31 ;the channels that are CICs
>> sigchan=1 ;the signaling channel
>>
>
> Any help would be appreciated. Feels like I'm missing something in the
> configs but I just can't seem to pin it down.
>
> Regards
> Victor
>
>
>
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