[asterisk-users] Digium B410P or Sangoma A502D?

[Andres]

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)...
>
>  
>
All Sangoma Asterisk cards **except** the BRI cards will indeed use 
Zaptel.  But the BRI cards use a totally independent driver that 
communicates with the WOOMERA channel.  It does not use Zaptel at all 
and therefore no software echo cancel or even HPEC will help.  Believe 
me, we talked to Sangoma in detail about this.

Andres.

>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.
>
>--
>Matt
>________________________________________
>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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>>
>
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