dialogic was RE: [Asterisk-Users] "Glare" condition - How well does asteriskhandle?

[Scott Stingel]

Hi Steve-

Not to belabor this, but the PCI version of the Dialogic DMV600 board has
TEN 56311 DSP's per board - that's to handle only two E1's.  Having
programmed the Motorola 56000 series DSP's in my past life, I can assure you
that that's a fair bit of processing power.  In the "old days" (early 90's)
with our own designs, we were able to do all the DTMF, as well as tone and
voice detect for a 30-channel span with only one 50MHz 56001 DSP.

http://www.intel.com/network/csp/products/7603ts.htm

But real-world experience is more important.  The Digium TE4XXP boards can
barely handle 4 E1's in one high-powered chassis (again, high volume IVR) -
we used to routinely put 8-12 Dialogic-driven E1's in a single 300 MHz
chassis with not a burp.  The signalling, protocol, call progress analysis
etc are largely handled right on the Dialogic board.

Anyway, sorry to run on about this..  I'm not knocking the Digium boards, in
fact I support them exclusively now for new customers.   But to have the
support of Dialogic boards available for people who want to build really
large systems (or who have a ton of used Dialogics on hand) would be nice.

Regards
Scott Stingel


Scott M. Stingel
President,
Emerging Voice Technology, Inc.
Palo Alto California & London England
www.evtmedia.com 


-----Original Message-----
From: asterisk-users-admin at lists.digium.com
[mailto:asterisk-users-admin at lists.digium.com] On Behalf Of Steve Underwood
Sent: Thursday, May 27, 2004 7:48 AM
To: asterisk-users at lists.digium.com
Subject: Re: dialogic was RE: [Asterisk-Users] "Glare" condition - How well
does asteriskhandle?

Scott Stingel wrote:

>Not to mention that the Digium T1/E1 cards are about 1/5 the cost of 
>Dialogic's.  That said, it should be noted that the Dialogic cards 
>allow scaling to a much larger size within one chassis, thanks to heavy 
>DSP horsepower helping out with the low level chores.
>  
>
The Dialogic cards don't have heavy DSP horsepower. They have rather feeble
DSP power. That is why they only do the simplest of tasks with the onboard
DSP.

Regards,
Steve

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