[asterisk-ss7] Alignment problem with libss7

[Victor Neiman]

HI Mitul,

thanks for the suggestion, tried it, does not seem to help, in fact getting
an additional error message now in Asterisk:


[Oct  1 13:35:52] ERROR[26703]: chan_dahdi.c:13966 dahdi_ss7_error: [1]
> Received MSU in invalid state 1
>
>
Regards
Vic

On Mon, Oct 1, 2012 at 11:11 AM, Mitul Limbani <mitul at enterux.com> wrote:

> 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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>
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