asterisk users - Apr 2006 - Faxing and PCI (was Re: Digium cards, sodisappointing !)

On Saturday, April 15, 2006 3:17 PM Remco Barende wrote: 
> I heard that Junghanns is working on such an interconnection. It is
> already possible to connect their PRI cards, and they are working on
> BRI<->PRI.  
Correct. The next driver generation is supposed to support this fully.
> I ise their bristuff for an HFC-S BRI card and am not happy at all
> with the way they implemented timing, without applying the florz
> patch I have lots of problems (lockups, lost line etc.)  
> 
> My hesitation is with the driver, I think florz only fixes HFC-S if I
> would run into similar trouble with PRI I would be in deep trouble. 
The drivers for their BRI/PRI cards are totally independant from the
standard HFC driver. I own a QuadBRI card and do not have any timing
problems whatsoever.
> But it would certainly fix faxing.
Bristuff will help anyway. You can disable echo can and modulations
(rx/txgain) on a per call basis which is very important for faxing and
bridged call faxing.


Kind regards,
  JP
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2006/4/16, Koopmann, Jan-Peter
<Jan-Peter.Koopmann@seceidos.de>:
>
>
> The drivers for their BRI/PRI cards are totally independant from the
> standard HFC driver. I own a QuadBRI card and do not have any timing
> problems whatsoever.
>
>
We used this card and still got faxing problems (roughly 95% of faxes worked
OK but 5% of fax communications are cut).

We couldn't get any help from Junghanns backing that their cards really
support "active channel switching capability (to bridge B channels on the
card without latency and not using the host CPU)" as mentionned in the
datasheet.

Maybe this statement is true up to a given CPU or memory load ?

Cheers
Olivier
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