On Fri, 11 Feb 2011 11:04:49 +0100, mosbah abdelkader
<[email protected]> wrote:
> Hi,
> 
> 
> Thank you for your help.
> 
> 
> For the timer, the doc mentions that a DAHDI card must be used!!!! What
to
> use for timer if there is no card? Or, the timer does not matter if no
> hardware is available?
> 

You may use dahdi_dummy on Ast1 to provide the timing and use the same
timing on Ast2 delivered via the TDMoE span and probably again dahdi_dummy
as a backup timing device

> 
> --
> BR
> Abdelkader Mosbah
> 
>> yes it is possible.
>> In dahdi/system.conf you configure a dynamic span like:
> 
>> #       To Ast 2
>> dynamic=eth,eth0/<MAC_of_Ast2>,31,0
>> dchan=16
>> bchan=1-15,17-31
> 
>> in the second system (asuming that Ast1 will provide the timing)
>> #       To Ast 1
>> dynamic=eth,eth0/<MAC_of_Ast1>,31,1
>> dchan=16
>> bchan=1-15,17-31
> 
>> and you use the span just lik you would use a hardware span.
>> The example is for a typical PRI setup, but with dynamic spans you may
>> have 124 chans (or more) in a single dynamic device:
> 
>> dynamic=eth,eth0/<MAC_of_the_remote>,124,0
>> dchan=1
>> bchan=2-124

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