[Asterisk-Users] [ot] Grandstream hardware

[Eric Wieling]

On Mon, 2004-01-19 at 14:01, Bob Knight wrote:
> Scott Stingel wrote:
> 
> >>What *I* want to know is why someone has not made a CHEAP PCI card
> with
> >>4, 8, or 16 of these DSPs on it.  This kind of card would provide
> >>
> >>    
> >>
> >
> >Expanding a bit on Nicolas' message, DSP software is complex, and
> there is
> >not a huge number of people who do it well.  So along with the board
> layout
> >and production cost (not trival for a 6- or 8-layer board), you have
> the
> >programming cost for both the PGA (programmable gate array) device(s)
> and
> >the DSP.   You also have the cost of the DSP simulators, driver
> development
> >etc etc.
> >
> >All of these must be amortized over the number of boards you expect
> to sell
> >- that's why the board price can get so high.  Dialogic's D600-2E1
> JCT
> >boards etc cost well over US$10000.  The whole point of the
> asterisk/digium
> >exercise is to move the complex software to the PC and take advantage
> of the
> >economies of scale that it brings.
> >
> Don't forget power and HEAT!
> When I was making Portmasters at Livingston/Lucent we made modem
> boards
> with a bunch of DSP's sitting on TDM's.  Some of those DSP's are great
> BTU generators.  Some times you have to clock the DSP at slower speeds
> just to
> keep the heat down.

Did patent/codec indemnification come as part of the DSP product, or did
you have to do the indemnification separately?