[asterisk-users] R2 Argentina

[Oscar Carriles]

Dear Folks,

I have found that Argentine variant ar libmfcr2.0.0.3 is not set
correctly
Regarding ANI restriction signal.

Argentine regulations since 1999 have swaped SIG_12 with SIG_15 in order
To restrict ANI presentation to the user.
I dont know if it has been patched in later releases of mfcr2 lib but
this
Simple patch works for me in mfcr2.c:

/*
 * patch de Oscar Carriles
 *
       mfcr2->group_i_end_of_ANI_restricted = R2_SIGI_12;*/
        mfcr2->group_i_end_of_ANI_restricted = R2_SIGI_15;
        mfcr2->group_i_end_of_ANI = R2_SIGI_12;

Thanks to Steve UnderWood for his excelent work!




Ing. Oscar Andrés Carriles

Director de Ingeniería

Eolix Technologies S.R.L.

Tel 54 11 50 32 33 52 ext. 2002

www.eolix.com.ar

 

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-----Mensaje original-----
De: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] En nombre de Steve
Underwood
Enviado el: Lunes, 24 de Julio de 2006 07:33 p.m.
Para: Asterisk Users Mailing List - Non-Commercial Discussion
Asunto: Re: [asterisk-users] Clocking Multiple T1 Cards

Andrew Kohlsmith wrote:

>On Monday 24 July 2006 12:11, Shaw Terwilliger wrote:
>  
>
>>Thank you; this is the kind of information I was looking for.  The
wiki
>>and other documents told me exactly what the configuration options
did,
>>but I didn't know what kind of timing configuration was right for
>>multiple cards.
>>    
>>
>
>Essentially the timing is ONLY for the hardware on the card.  The
Digium cards 
>use a quad framer chip (maybe a dual for the TE210 but I don't think
so) and 
>it's a hardware limitation of the framer that all spans must share the
same 
>clock source.  Sangoma's cards use individual framers and don't have
this 
>limitation.  (essentially I think it was a cost/space tradeoff.)
>
>Once the data is on the PCI bus, the clock source is irrelevant.
They're all 
>close enough that it doesn't matter anymore.
>
This statement is very very wrong. The timing matters enormously. If the

timing doesn't match, there will be frame slips, and things like modems 
will not work. The snag is, right now neither Asterisk or the cards it 
uses have the ability to lock their clocks together.

>  Those framers want exact 
>lock-step timing though, which is why your clocking settings are so
very 
>important, and why with telephony in general it is crucial to think
about 
>your clocking before throwing hardware at a solution.
>  
>
Steve

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