[asterisk-ss7] Errors on a SS7-Link with libss7

Tue Jul 31 09:40:09 CDT 2007

Marc Storck wrote:
> I have the same issue.
> 
> - All CIC are "Out of service"
> - SS7 is up "SS7 linkset 1 status: Up"
> - Incoming calls don't have audio.

The most likely reason why you don't have audio is because your CICs are 
not correctly mapped to your zap channels.  You may want to make sure 
they're not including DS0 timeslot 0 as one of the CICs.  Out of service 
doesn't mean a lot, it just means the circuits didn't reset when the 
link comes up.  Some switches do the reset, some don't.

Matthew Fredrickson

> - incoming calls produce the following ss7 debug information:
> 
> Unhandled optional parameter 0x37 'Unknown'
> [0x2 ]
> Unhandled optional parameter 0x8 'Optional forward call indicator'
> [0x80 ]
> Unhandled optional parameter 0x3 'Access Transport'
> [0x7d 0x2 0x91 0x81 ]
> Unhandled optional parameter 0x31 'Propagation Delay'
> [0x0 0x8 ]
> Unhandled optional parameter 0x3f 'Location Number'
> [0x84 0x97 0x53 0x2 ]
> Unhandled optional parameter 0x39 'Unknown'
> [0x37 0xc0 0x31 0xc0 0x3f 0xc0 ]
> 
> - outgoing calls produce the following errors:
> 
> [Jul 31 15:21:55] ERROR[1971]: chan_zap.c:8904 zt_ss7_error: !! Unable 
> to handle message of type 0x2e
> [Jul 31 15:21:55] ERROR[1971]: chan_zap.c:8904 zt_ss7_error: Received 
> error from mtp3 layer: -1
> 
> The setup used 2 E1 with signalling on channel 1 of first E1. CICs are 
> numbered starting from 1, using channels 2-31 on first E1 and the 
> channels 32-62 which are on second E1.
> 
> Best regards,
> 
> Marc
> 
> 
> asterisk at nicox.org wrote:
>> Another thing which we seen on this link, every of our 95 CIC's is out of 
>> service seen in "zap show channels", but the carrier said, everything is 
>> okay. How can i see which CIC is blocked, or in service, and other things?
>>
>> Thanks for your help
>>
>> Nico
>>
>>
>> On Mon, 16 Jul 2007, Matt Fredrickson wrote:
>>
>>> ----- asterisk at nicox.org wrote:
>>>> The switch on the other side is an Ericsson switch, do you need any
>>>> data
>>>> to get implement/solve this things?
>>> I looked at Q.763, and it looks like CFN is the confusion message.  It's used when you send a parameter to the other end that it doesn't recognize.  I'm traveling right now, but I'll be back in about 2 days.  I think then I can look more into this.
>>>
>>> Matthew Fredrickson
>>>
>>>> Thanks
>>>>
>>>> Nico
>>>>
>>>>
>>>>
>>>> On Sun, 15 Jul 2007, Matt Fredrickson wrote:
>>>>
>>>>> It just means that you received a message that the ISUP of libss7
>>>> doesn't do anything with.  It looks like it's a CFN message.  Also
>>>> looks like you recieved a few optional parameters that are ignored by
>>>> libss7 too.  The optional parameters shouldn't cause a problem.  I'll
>>>> have to see what CFN is used for.
>>>>> ---
>>>>> Matthew Fredrickson
>>>>>
>>>>> ----- asterisk at nicox.org wrote:
>>>>>> [Jul 13 11:56:08] ERROR[23169]: chan_zap.c:8928 zt_ss7_error: !!
>>>>>> Unable to
>>>>>> handle message of type 0x2f
>>>>>> [Jul 13 11:56:08] ERROR[23169]: chan_zap.c:8928 zt_ss7_error:
>>>> Received
>>>>>> error from mtp3 layer: -1
>>>>>> [Jul 13 11:56:08] WARNING[23169]: app_dial.c:813 wait_for_answer:
>>>>>> Unable
>>>>>> to forward voice or dtmf
>>>>>> Unhandled optional parameter 0x2e 'Unknown'
>>>>>> [0x0 ]
>>>>>> Unhandled optional parameter 0x39 'Unknown'
>>>>>> [0x2e 0xc0 ]
>>>>>> [Jul 13 11:56:20] ERROR[23169]: chan_zap.c:8928 zt_ss7_error: !!
>>>>>> Unable to
>>>>>> handle message of type 0x2f
>>>>>> [Jul 13 11:56:20] ERROR[23169]: chan_zap.c:8928 zt_ss7_error:
>>>> Received
>>>>>> error from mtp3 layer: -1
>>>>>> Unhandled optional parameter 0x2c 'Generic Notification
>>>> Indication'
>>>>>> [0xfa ]LI>
>>>>>> Unhandled optional parameter 0x39 'Unknown'
>>>>>> [0x2c 0xd0 ]
>>>>>> [Jul 13 11:56:21] ERROR[23169]: chan_zap.c:8928 zt_ss7_error: !!
>>>>>> Unable to
>>>>>> handle message of type 0x2f
>>>>>> [Jul 13 11:56:21] ERROR[23169]: chan_zap.c:8928 zt_ss7_error:
>>>> Received
>>>>>> error from mtp3 layer: -1
>>>>>> [Jul 13 11:56:21] WARNING[23169]: app_dial.c:813 wait_for_answer:
>>>>>> Unable
>>>>>> to forward voice or dtmf
>>>>>> Unhandled optional parameter 0x37 'Unknown'
>>>>>> [0xa ]CLI>
>>>>>> Unhandled optional parameter 0x39 'Unknown'
>>>>>> [0x37 0xc0 ]
>>>>>> [Jul 13 11:56:29] ERROR[23169]: chan_zap.c:8928 zt_ss7_error: !!
>>>>>> Unable to
>>>>>> handle message of type 0x2f
>>>>>> [Jul 13 11:56:29] ERROR[23169]: chan_zap.c:8928 zt_ss7_error:
>>>> Received
>>>>>> error from mtp3 layer: -1
>>>>>> [Jul 13 11:56:30] ERROR[23169]: chan_zap.c:8928 zt_ss7_error: !!
>>>>>> Unable to
>>>>>> handle message of type 0x2f
>>>>>> [Jul 13 11:56:30] ERROR[23169]: chan_zap.c:8928 zt_ss7_error:
>>>> Received
>>>>>> error from mtp3 layer: -1
>>>>>> [Jul 13 11:56:56] ERROR[23169]: chan_zap.c:8928 zt_ss7_error: !!
>>>>>> Unable to
>>>>>> handle message of type 0x2f
>>>>>> [Jul 13 11:56:56] ERROR[23169]: chan_zap.c:8928 zt_ss7_error:
>>>> Received
>>>>>> error from mtp3 layer: -1
>>>>>> [Jul 13 11:57:09] ERROR[23169]: chan_zap.c:8928 zt_ss7_error: !!
>>>>>> Unable to
>>>>>> handle message of type 0x2f
>>>>>> [Jul 13 11:57:09] ERROR[23169]: chan_zap.c:8928 zt_ss7_error:
>>>> Received
>>>>>> error from mtp3 layer: -1
>>>>>> [Jul 13 11:57:11] WARNING[23169]: app_dial.c:813 wait_for_answer:
>>>>>> Unable
>>>>>> to forward voice or dtmf
>>>>>> Unhandled optional parameter 0x2e 'Unknown'
>>>>>> [0x0 ]CLI>
>>>>>> Unhandled optional parameter 0x39 'Unknown'
>>>>>> [0x2e 0xc0 ]
>>>>>> Unhandled optional parameter 0x2c 'Generic Notification
>>>> Indication'
>>>>>> [0xfb ]LI>
>>>>>> Unhandled optional parameter 0x36 'Unknown'
>>>>>> [0x1a ]
>>>>>> Unhandled optional parameter 0x39 'Unknown'
>>>>>> [0x36 0xd0 0x2c 0xd0 ]
>>>>>> Unhandled optional parameter 0x2e 'Unknown'
>>>>>> [0x0 ]CLI>
>>>>>> Unhandled optional parameter 0x39 'Unknown'
>>>>>> [0x2e 0xc0 ]
>>>>>>
>>>>>>
>>>>>> Can anybody help what that means?
>>>>>>
>>>>>> Thanks
>>>>>>
>>>>>> Nico
> 
> _______________________________________________
> --Bandwidth and Colocation Provided by http://www.api-digital.com--
> 
> asterisk-ss7 mailing list
> To UNSUBSCRIBE or update options visit:
>    http://lists.digium.com/mailman/listinfo/asterisk-ss7

-- 
Matthew Fredrickson
Software/Firmware Engineer
Digium, Inc.