> I'm really confused about what you are trying to do and what you are
A compact low powered device which can run fxo/fxs/e1/t1
cards along with asterisk.
> Then you say that if you don't need transcoding you would just use
If you don't need transcoding, then you don't need to do
any floating point operations. since codec data will be passthrough.
I'm using wrt for more than a year with g729 & speex codecs without
any problems.
Kannaiyan
On 7/12/07, Kristian Kielhofner <[EMAIL PROTECTED]> wrote:
> On 7/11/07, Kannaiyan Natesan <[EMAIL PROTECTED]> wrote:
> > If I use a Zaptel PCI device then I need to translate between codec to slin.
> > Highbitrate detoriates quality becoz of low bandwidth internet available to
> > the device. Thought of trying 4 zap channels with GSM codec, looks like I
> > can't.
> >
> > If I want to use without translation, I can go for cheaper alternative with
> > openwrt routers which I'm using right now.
> >
> > Kannaiyan
> >
>
> Kannaiyan,
>
> I'm really confused about what you are trying to do and what you are
> trying to do it with.
>
> You want to use a Zaptel PCI device and you want to use GSM. GSM
> requires a bit of CPU power to transcode to Zap/slin (as you can see
> from the transcode times). If you were to use ulaw or alaw it would
> probably work just fine.
>
> Most of the codecs in Asterisk are implemented in floating point.
> Low power CPUs like the Geode LX/GX don't have very powerful FPUs like
> most Intel/AMDs. If you need low power and floating point for x86 you
> need to look at something based on the Geode NX (or possibly the VIA
> C7).
>
> Then you say that if you don't need transcoding you would just use
> something cheaper like a Linksys router. Are you aware:
>
> - A WRT is MIPS based and has no floating point unit at all. Floating
> point operations have to be emulated in software. This is very slow.
>
> - The processor itself is only something like 233mhz.
>
> - There is no PCI bus, so no Zaptel cards.
>
> At this point this post is pretty off topic for soekris-tech. I
> would suggest that you ask further on the AstLinux or Asterisk mailing
> lists.
>
>
> --
> Kristian Kielhofner
>
_______________________________________________
Soekris-tech mailing list
[email protected]
http://lists.soekris.com/mailman/listinfo/soekris-tech
