[asterisk-users] building a phone

[Grygoriy Dobrovolskyy]

2009/2/27 Wilton Helm <whelm at compuserve.com>

>  > I assume that the relevant application requires some non-trivial CPU
> power. I would
> > exclude e.g. a 486-based systems.
>
> I'm not sure that's the case.  The industry has gone in the direction of
> throwing lots of silicon at a problem, often as an excuse for poorly written
> code, sometimes in an interpreted language.  There are a number of high
> integration CPUs out there that I suspect could do this sort of thing.  I
> develop device controllers for a variety of industry needs.  They tend to
> have Ethernet, RS-232, sometimes 1 Mb/s synchronous communication. G711,
> quarter VGA color LCD with touchscreen and control loops running at about a
> 1 ms rate.  The entire code takes less than 256K in C.  My choice of
> processor is the DStni Ex (made by Lantronix and sold by Grid Connect) which
> is a high integration, high speed 186 core with two 10/100 Ethernet Ports
> and 256K of RAM on it in addition to the usual assortment of other stuff.
> The above required platform adds three support chips (one being the LCD
> controller).  The CPU can run over 100 MHz.  Memory accesses take one clock
> and typical instructions take two or three.  Cost is in the $10 to $20 range
> for the chip and power consumption is around 1 W (the LCD backlight takes
> more than that!)
>
> I'm sure there are several other comparable platforms out there, such as by
> Digi International.  The Geode is a good candidate as are some VIA chips, if
> one wants to use protected mode x86.  The biggest thing for this is don't
> even consider Intel.  For most of their life they have not provided cutting
> edge solutions for embedded use.  Most of their stuff consumes too much
> power.  And most importantly, they are targeting the very volatile, short
> lived PC market.  By the time you get an embedded design up and running and
> reach market penetration, you won't be able to buy the chip any more.
>
> Wilton
>
>
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I wonder what kind of hardware snom use, they got linux, they got openvpn. I
would be nice to have that, and yes i want a gui, maybe not embedded to
reduce load, but something like an external config generator software would
be nice.
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