(thread moved from asterisk-dev)
Hello Wai-
You can find out a lot about the digium cards and asterisk software on
the "Wiki", which is at:
http://www.voip-info.org/tiki-index.php?page=Asterisk
Briefly, though, asterisk implements things like DTMF and voice
detection using the host processor's hardware/software. This makes the
cost of the interface card much lower than, say, a Dialogic, but limits
to some extent the number of channels you can handle with one processor.
With the size of the processor you mentioned, for most applications you
could probably handle between 3 and 4 full E1 spans, but heavy
transcoding might cut that number down somewhat. Test before you commit!
Hope this gets you started.
Regards
Scott Stingel
www.evtmedia.com
Wai Wu wrote:
> Hi all,
>
> My first post here. We will be implementing an * solution with Digium
> Pri cards. I have a few questions. First, what is the largest * system
> anyone has put together with a P4 3.4GHz with a 1GByte of ram? My
> second question is regarding to the Digium Pri card. On the Digium
> site, I notics those cards are half length cards and they are quite
> small. As dtmf detection, and active voice detection is concerned, are
> they done on the card itself or they are done in *?
>
> Regards
>
>
>
>
>