[asterisk-ss7] Siemens SDE - libss7
umar tarar
umar.tarar at gmail.com
Sat Jun 30 09:16:33 CDT 2007
hello Claudio Aznar!
I guess you may feel luckier reading this post, as I was the one victim of
the same problem that you are currently in (problem: bringing the asterisk
server up on SS7 link with SIEMENS EWSD for successful calls, be it chan_ss7
or libss7). I tried both & had the same results as you have for each one, I
explained & posted the same as you did rather more than that including
exchange of posts with Mathew Fredrickson. Then, in an effort of leaving no
stone unturned, the solution came across & was lying in changing the CIC on
EWSD side from 1 to 0 while keeping firstcic=1 on asterisk (chan_ss7-0.8.4or
0.9). doing this made every thing working fine i.e. all channels became idle
& started receiving calls. Because the CIC mapping on the EWSD side starts
from CIC = 0 & remains the same for the whole trunk group i.e. E1, and for
the next trunkGroup/E1 there is another CIC, they represent it like this:
CIC=0-1
CIC=1-2
CIC=2-3
…
Where in CIC=0-1, the '0' specifies the CIC and the '1' is the trunkGroup/E1
number and similarly in CIC=1-2, the '1' is CIC & '2' is E1 number and so
on. So based on my experience, I can guess with a high probability that your
telco side has set CIC=1-1 on their EWSD as they generally do it. If on EWSD
you find it so, then ask the EWSD ppl to change their CIC to '0' for the
trunkGroup/E1 that is for your asterisk server connectivity and keep your
firstcic=1 & channels => 1-15,17-31 in the link settings in ss7.conf
I hope it'll work for you too
My posts when I was in the same prob are here:
http://lists.digium.com/pipermail/asterisk-ss7/2006-December/000928.html
http://lists.digium.com/pipermail/asterisk-ss7/2006-November/000716.html
On 6/30/07, Claudio Aznar <caznar at easyip.com.ar> wrote:
>
> Testing with chan_ss7 & Asterisk 1.4, I have INSERVICE with "ss7 link
> status" and in the SDE side I look the link up too but don't work.
> Like that libss7, the link go from DOWN to INSERVICE, I attach a little
> debug from chan_ss7
>
>
> sspVoIP*CLI> ss7 link status
> linkset siuc, link l1, schannel 16, NOT_ALIGNED, rx: 0, tx: 4/4,
> sentseq/lastack: 127/127, total 668544, 668592
>
> sspVoIP*CLI> ss7 linestat 1
> Linkset: siuc
> CIC 2 Idle Reset pending BLOCKED Link down
> CIC 3 Idle Reset pending BLOCKED Link down
> ....
> CIC 31 Idle Reset pending BLOCKED Link down
>
> And I see this WARNINGs & ERRORs
>
> [Jun 29 19:21:35] WARNING[3930]: mtp.c:791 timeout_sltm_t1: No SLTA
> received
> within Q.707 timer T1, trying again on link 'l1'.
> [Jun 29 19:21:44] ERROR[3930]: mtp.c:796 timeout_sltm_t1: No SLTA received
> within Q.707 timer T1, faulting link on link 'l1'.
> [Jun 29 19:21:44] WARNING[3930]: chan_ss7.c:637 monitor_main: MTP is now
> DOWN on link 'l1'.
>
>
> Regards,
> Claudio Aznar
>
>
> -----Mensaje original-----
> De: asterisk-ss7-bounces at lists.digium.com
> [mailto:asterisk-ss7-bounces at lists.digium.com] En nombre de Matthew
> Fredrickson
> Enviado el: Viernes, 29 de Junio de 2007 02:23 p.m.
> Para: asterisk-ss7 at lists.digium.com
> Asunto: Re: [asterisk-ss7] Siemens SDE - libss7
>
> On Jun 29, 2007, at 11:49 AM, Claudio Aznar wrote:
>
> > Dear Matthew,
> >
> > Thank you for your answer. I'm attaching the config files so you
> can
> > see them.
> > The only msg that I can view in the PBX side is "SLT fault".
> > In the README os libss7 it says that it was tested with EWSD, do
> you
> > know the config files used for test?
>
> You timing looks good. That's the biggest thing I was concerned
> about. I can't remember exactly, it was either a TE4xxp or a TE110P,
> when I tested it, but it was one of the two. Maybe finding further
> into what that error means could help us. It's possible that it's
> expecting periodic SLTM messages, which we don't do unless the other
> end does first right now. But the meaning of that error is what
> ultimately matters.
>
> ---
> Matthew Fredrickson
> Software Engineer
> Digium, Inc.
>
>
>
> >
> > Regards,
> > Claudio Aznar
> >
> >
> > -----Mensaje original-----
> > De: asterisk-ss7-bounces at lists.digium.com
> > [mailto:asterisk-ss7-bounces at lists.digium.com] En nombre de Matthew
> > Fredrickson
> > Enviado el: Viernes, 29 de Junio de 2007 11:32 a.m.
> > Para: asterisk-ss7 at lists.digium.com
> > Asunto: Re: [asterisk-ss7] Siemens SDE - libss7
> >
> > It almost looks like layer 1 problems. The other end is dropping the
> > link for some reason (sending SIOS after the link has been aligned).
> > Is your timing correct in your zaptel.conf?
> >
> > ---
> > Matthew Fredrickson
> > Software Engineer
> > Digium, Inc.
> >
> > On Jun 28, 2007, at 7:47 PM, Claudio Aznar wrote:
> >
> >> Dear list,
> >>
> >>
> >>
> >> I'm trying to configure an Asterisk GW (Debian sarge w/
> >> last trunk cvs version - r69519M). All the source compile fine and
> >> I can install them without problem.
> >>
> >>
> >>
> >> In the Asterisk side, I see this:
> >>
> >>
> >>
> >> *CLI> ss7 show linkset 1
> >>
> >> SS7 linkset 1 status: Up
> >>
> >> *CLI> zap show status
> >>
> >> Description Alarms
> >> IRQ bpviol CRC4
> >>
> >> Digium Wildcard TE110P T1/E1 Card 0 OK
> >> 0 0 0
> >>
> >> *CLI> zap show channels
> >>
> >> Chan Extension Context Language MOH
> >> Interpret Blocked State
> >>
> >> pseudo prepago es
> >> default In Service
> >>
> >> 1 prepago es
> >> default Out of Ser
> >>
> >> 2 prepago es
> >> default Out of Ser
> >>
> >> .
> >>
> >> 31 prepago es
> >> default Out of Ser
> >>
> >>
> >>
> >> In the PBX side (Siemens SDE, SS7 protocols like EWSD),
> >> the status seems to be down.
> >>
> >> When a set debug for SS7, I see this:
> >>
> >>
> >>
> >> *CLI> ss7 debug linkset 1
> >>
> >> Enabled debugging on linkset 1
> >>
> >> *CLI> Len = 3 [ 81 82 00 ]
> >>
> >> FSN: 2 FIB 1
> >>
> >> BSN: 1 BIB 1
> >>
> >>> [0] FISU
> >>
> >>
> >>
> >> Len = 2 [ 82 81 ]
> >>
> >> FSN: 1 FIB 1
> >>
> >> BSN: 2 BIB 1
> >>
> >> <[0] LSSU SIOS
> >>
> >>
> >>
> >> Link state change: INSERVICE -> IDLE
> >>
> >> Len = 2 [ ff ff ]
> >>
> >> FSN: 127 FIB 1
> >>
> >> BSN: 127 BIB 1
> >>
> >> <[0] LSSU SIO
> >>
> >>
> >>
> >> Link state change: IDLE -> ALIGNED
> >>
> >> Len = 2 [ ff ff ]
> >>
> >> FSN: 127 FIB 1
> >>
> >> BSN: 127 BIB 1
> >>
> >> <[0] LSSU SIE
> >>
> >>
> >>
> >> Link state change: NOTALIGNED -> PROVING
> >>
> >> T4 expired!
> >>
> >> Link state change: PROVING -> ALIGNEDREADY
> >>
> >> Len = 3 [ ff ff 00 ]
> >>
> >> FSN: 127 FIB 1
> >>
> >> BSN: 127 BIB 1
> >>
> >>> [0] FISU
> >>
> >>
> >>
> >> Len = 1 [ ff ]
> >>
> >> FSN: 127 FIB 1
> >>
> >> BSN: 127 BIB 1
> >>
> >> <[0] FISU
> >>
> >>
> >>
> >> Link state change: ALIGNEDREADY -> INSERVICE
> >>
> >> Len = 20 [ ff 80 11 81 0c 72 83 0c 11 a0 32 35 36 34 32 38 36 32 38
> >> 38 ]
> >>
> >> [ ff 80 11 ]
> >>
> >> FSN: 0 FIB 1
> >>
> >> BSN: 127 BIB 1
> >>
> >>> [0] MSU
> >>
> >> [ 81 ]
> >>
> >> Network Indicator: 2 Priority: 0 User Part: STD_TEST
> >>
> >> [ 0c 72 83 0c ]
> >>
> >> OPC 12813 DPC 12812 SLS 0
> >>
> >> [ 11 ]
> >>
> >> H0: 1 H1: 1
> >>
> >> Message type: COO
> >>
> >>
> >>
> >> Len = 21 [ ff 80 14 81 0d 32 83 1c 11 d0 03 01 54 45 53 54 5f 43 4f
> >> 4e 46 ]
> >>
> >> [ ff 80 14 ]
> >>
> >> FSN: 0 FIB 1
> >>
> >> BSN: 127 BIB 1
> >>
> >> <[0] MSU
> >>
> >> [ 81 ]
> >>
> >> Network Indicator: 2 Priority: 0 User Part: STD_TEST
> >>
> >> [ 0d 32 83 1c ]
> >>
> >> OPC 12812 DPC 12813 SLS 1
> >>
> >> [ 11 ]
> >>
> >> H0: 1 H1: 1
> >>
> >> Message type: COO
> >>
> >>
> >>
> >> Len = 23 [ 80 81 14 81 0c 72 83 0c 21 d0 03 01 54 45 53 54 5f 43 4f
> >> 4e 46 49 47 ]
> >>
> >> [ 80 81 14 ]
> >>
> >> FSN: 1 FIB 1
> >>
> >> BSN: 0 BIB 1
> >>
> >>> [0] MSU
> >>
> >> [ 81 ]
> >>
> >> Network Indicator: 2 Priority: 0 User Part: STD_TEST
> >>
> >> [ 0c 72 83 0c ]
> >>
> >> OPC 12813 DPC 12812 SLS 0
> >>
> >> [ 21 ]
> >>
> >> H0: 1 H1: 2
> >>
> >> Message type: COA
> >>
> >>
> >>
> >> I appreciate very much your help.
> >>
> >>
> >>
> >> Regards,
> >>
> >> Claudio Aznar
> >>
> >> _______________________________________________
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> >>
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> >
> >
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> >
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> > <zaptel.conf>
> > <zapata.conf>
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>
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