Adam Goryachev wrote:
On Mon, 2005-05-30 at 11:10 -0500, Kristian Kielhofner wrote:
Andrew Kohlsmith wrote:
On Monday 30 May 2005 11:28, Adam Goryachev wrote:
How many channels could this board deal with when purely translating
from G.729 IAX2 <-> G.729 SIP....
That's not a codec translation; Asterisk can simply take the IAX2 audio frames
and stuff them into RTP frames without actually deconstructing the audio
itself and recoding it.
Exactly. I have people doing at least ~30 calls in that manner.
Could you describe the hardware/software and general config when you had
~30 channels working as above? I assume you mean with no affect to the
audio quality/etc as well?
Sip phones (Cisco 7960 - SIP) -> AstLinux (Soekris) -> Network (IAX)->
Asterisk Server -> PSTN
Audio was great on all calls.
Does this make any sense?
That's just glorified packet forwarding (okay not really, but I can't
think of anything better).
Well, I hoped it would be quite similar to NAT... ie, fiddle with some
bits in the packet, but the majority of the packets contents is the
same. Though I also figure SIP <-> IAX2 does actually take 1 packet per
channel being trunked, combine it into a single packet, and then send it
off.
I don't think this person was doing trunking, but I could be wrong.
Also, it will definitely have a performance impact, but probably not a
whole lot...
As far as "how many" -- this is where you must do the research and post
results. There is no data on it at this point, mostly because people just
haven't done the research. :-)
-A.
I know that I keep using this as an excuse, but with Asterisk there are
just too many variables to be able to answer questions like "How many
calls x x?"
Codecs, protocols, trunking, re-invites, echo can., etc, make it very
difficult to come up with numbers. I want to do an "astertest" on this
hardware, but have just not had enough time...
Well, up until yesterday afternoon, I was going to get three different
mini-ITX systems, and go ahead and test it, however, now I'm wondering
what the real-life reliability difference is between a via mini-itx
system, the aforementioned Soekris board, and a standard (decent) PC is.
I've seen many standard PC's last 5years +, then again, I've also seen
plenty of failures, though these are generally related to the HDD, fan,
or power supply. So, I'm wondering does anyone have real-life
comparisons on the failure rate of a PC compared to the failure rate of
some of these options??
Regards,
Adam
Five years for a phone switch is not that good... Anyways, I'm not the
person to give you the data you are looking for. I just don't have it.
--
Kristian Kielhofner
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