[asterisk-users] Digium B410P or Sangoma A502D?

[Patrick]

On Thu, 2008-04-24 at 19:50 -0400, Matt Watson wrote:
> I haven;t used any BRI cards but... call me crazy but wouldn;t they
> still be using Zaptel (even your sangoma... the script might just be
> configuring it for you)...

Last time I installed them the Sangoma drivers sorta run on top of
zaptel.

> and btw, software echo cancel happens in the zaptel kernel driver...
> it has nothing to do with the hardware (hence why its a software echo
> cancel)....
> 
> You also would of had the option of buying HPEC licenses for software
> echo cancel from digium for a rather cheap price.

That's a solution too but a bit of a risk since afaik the hardware echo
cancellation can perform better than the software one. The CEO at the
client has echo to certain POTS destinations and I want to make sure
everything on his side is top notch.

Regards,
Patrick

___________________________________
> From: asterisk-users-bounces at lists.digium.com [asterisk-users-bounces at lists.digium.com] On Behalf Of Andres [andres at telesip.net]
> Sent: Thursday, April 24, 2008 5:04 PM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [asterisk-users] Digium B410P or Sangoma A502D?
> 
> We have tested both and they work fine.  The Sangoma is much easier to
> install as it does not depend on any other driver, you just run
> 'setup-sangoma' and follow the instructions.  You don't have to fiddle
> with the linux kernel or  zaptel or chan_misdn.  It just works.  Plus
> its more modular.  You can chose 2/4/6 ports to buy and if you need more
> just add remoras up to 24 ports.  The Digium card is fixed to 4 ports,
> period.
> 
> Having said that, make sure you stick with the version that has hardware
> echo cancel and not even try the other one.  We made the mistake of
> buying the first time without echo cancel expecting to test the
> 'software echo cancel'.  But there is no such thing as 'software echo
> cancel' on this card.  I do not even understand why Sangoma would make a
> version without the hardware echo cancel.  You get some degree of echo
> on practically every call.
> 
> Andres.
> 
> 
> 
> Patrick wrote:
> 
> >Hi,
> >
> >I need to setup an Asterisk box with 4x ISDN BRI links. Looking at the
> >specs of various cards I favor the Digium B410P and Sangoma A502D
> >because of hardware echo cancellation. Does anyone have any experience
> >with either card, good or bad? Which one would you choose and why?
> >
> >Thanks for your insight.
> >
> >Regards,
> >Patrick
> >
> >
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