[asterisk-ss7] a104 libss7 CIC configuration

[Gustavo Mársico]

I’m not a chan_ss7 user, but I remember there was a bounty a couple of years ago. As far as I know, there wasn’t enough funds to sort it out.

libss7, as well as chan_ss7, can receive CCR and make a loop in the channel at the incoming perspective, which is really trivial on the code. But at the other side, cannot send a CCR, send the tone and turn on the code receiver to listen if the tone is there.

Maybe it’s time to propose a bounty on this.

— Gustavo

On Feb 11, 2014, at 9:35 PM, Athiq Rahman <subs at arahmantech.com> wrote:

> Thanks for your prompt response Michal. That seems to have removed the warnings.
> 
> >>> Probably this is not possible yet. As I know, with libss7 you can receive continuity check request, but not send it.
> 
> Do you know if continuity checks can be done with chan_ss7 ?
> 
> -- Athiq
> 
> On 12/02/2014 00:19, Michal Rybárik wrote:
>> Hi,
>> 
>> 
>> On 02/12/2014 12:37 AM, Athiq Rahman wrote:
>>> 
>>> I have asterisk 11.6 with libss7 1.0.2 2x A104 card.
>>> 
>>> I have been given 4 E1 from my carrier with the following CIC configuraiton
>>> 
>>> CIRCUIT 0 :
>>> VOICE CIC: 1-15, 17-31
>>> SIG=16
>>> 
>>> CIRCUIT 1:
>>> VOICE CIC: 33-63
>>> 
>>> CIRCUIT 2:
>>> VOICE CIC: 65-95
>>> 
>>> CIRCUIT 3:
>>> VOICE CIC: 97-127
>>> 
>>> The carrier is saying that only the CIC 1-31 pass the continuity check. They are asking me to run CIC continuity check on my side, which I do not know how to perform.
>>> Does anyone how to do the CIC continuity check from asterisk side?
>> 
>> Probably this is not possible yet. As I know, with libss7 you can receive continuity check request, but not send it.
>> 
>>> 
>>> doing a dahdi show channel for 125, 126 and 127 show that those channels are part of span 5, even though in my systems.conf file below, i have disabled span 5 -8.
>>> 
>> 
>> It seems that your DAHDI channels are not configured properly. My DAHDI is using channel numbers 1-31, 32-62, 63-93, 94-124 for first 4 spans. You are configuring your span4 with channels up to 127, but 125-127 are probably on span5.  You have Red alarm on these channels, probably you don't have anything connected in span5 (no link). Try to correct channel numbers in /etc/dahdi/system.conf and also chan_dahdi.conf and use intervals which are listed above (but exclude channel used for signalling in span1).
>> 
>> If your peer really use CIC numbering as he sent you, probably you will do something like this in /etc/asterisk/chan_dahdi.conf
>> 
>> channel=17-31
>> cicbeginswith=33
>> channel=32-62 <<< changed
>> cicbeginswith=65
>> channel=63-93 <<< changed
>> cicbeginswith=97
>> channel=94-124 <<< changed
>> 
>> 
>> M.R.
>> 
>> 
> 
> 
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