I am curious on cpu load, if all dsp functions are done via software
instead of offloaded onto a specialized processor (DSP board) that has
to have some effect on call processing, meaning a more beefy
machine to
handle the load, and the real possiblity of not having a single
board do
everything (application, media gateway, VoIP, etc). While it makes
sense on that type of a system (high capacity) to spread it out for
load
balancing and redundancy and all that stuff that gives you a warm
fuzzy
feeling, it may now be more of a requirement.
GigE ports and switches are cheap, Converting DS0's (PCM) into g.
711 is a trivial task, mostly just moving bits. little of no 'DSP'
work needed. The cheapest processor today can keep up with 45mbps
full duplex. So, you eat up the DS3 into a machine and spit out 672
g.711 streams to a GigE switch. Sacrifice bandwidth but that is
cheap on the LAN. Then you can have the calls go to other Asterisk
boxes which will transcode to other codecs as needed.
Ideally I would love to see this in a cPCI form factor
-Matt
--
Matthew S. Crocker
Vice President
Crocker Communications, Inc.
Internet Division
PO BOX 710
Greenfield, MA 01302-0710
http://www.crocker.com
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