[asterisk-ss7] No Audio on SS7 calls to Remote PRIs

[Stephan Ellis]

Actually CICs Start on channel 2, signalling is on channel 1.  Any other
combination of cicstartswith results on no audio regardless of destination.
Remeber, it's only remote PRIs that I am having trouble with.

Also, if I set cicstartswith=2, when I issue "ss7 block linkset 1", the
switch only acknowledges blocking up to CIC 23.  It never responds to
blocking CIC 24.  So it must start with 1 starting on channel 2 of the t1.

-stephan

On Mon, Oct 4, 2010 at 2:23 PM, Abdul Basit <basit.engg at gmail.com> wrote:

> are you sure that CIC start at channel 1?
> have you tried changing values like 2 or 3?
>
> Please past any GRS/GRA messages from asterisk cli.
>
>
>
> On Mon, Oct 4, 2010 at 11:43 PM, Stephan Ellis <stephan.ellis at gmail.com>wrote:
>
>> I am definitely sure.  Also, when starting asterisk on this box, it says:
>>
>> MTP2 link up (SLC 0)
>> --- SS7 Up ---
>> Resetting CICs 1 to 23
>> Got reset acknowledgement from CIC 1 to 23.
>>
>> So it looks like to two ends agree on the CIC mappings.  It's weird
>> because it seems to only do this when calling remote PRIs.  Like I said, our
>> Siemens guy said everything is ok, except that we seem to be ignoring Pass
>> Along Mesages.
>>
>> -stephan
>>
>>
>> On Mon, Oct 4, 2010 at 1:02 PM, Krzysztof Drewicz <
>> krzysztofdrewicz at gmail.com> wrote:
>>
>>> 2010/10/4 Stephan Ellis <stephan.ellis at gmail.com>:
>>> > Anyone have any ideas on this?
>>> >
>>> > -stephan
>>> >
>>>
>>> As with most cases of no-audio in ss7:
>>>
>>> cicbeginswith=1
>>> channel=2-24
>>> sigchan=1
>>>
>>> you are 100% sure that you start numbering CICs with 1, and on the 2nd
>>> one you put first audio channel?
>>>
>>> please use debug on ss7, and restart your link, you will see a GRS/GRA
>>> message for example saying what CICs are being reset from/to the far
>>> end.
>>>
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>>
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>
>
>
> --
> Regards,
>
> Abdul Basit | +92 32 1416 4196
>
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