[asterisk-biz] hdwr v. sftwr v. no echo cancellation

f>Matt
wrote:

>>
DEFINITELY
use
hardware
echo
canc...
otherwise
you
may
be
upset
with

>>
the
quality
of
some
calls.

Actually,
I
would
agree
with
you
most
of
the
time,
but
for
8
or
less
channels
that
you
will
be
using
with
Digium's
TDM800P
either
choice
would
work.
The
main
consideration
is
the
amount
of
CPU
power
that
your
system
has.
The
hardware
echo
cancellation
module
and
the
HPEC
(High
Performance
Echo
Cancellation)
software
use
the
same
algorithm.
Either
way
you
will
be
using
the
same
AT&T
certified,
toll-quality,
G.168
compliant
echo
canceller.
The
main
reason
to
use
the
VPMADT032
h/w
based
solution
is
because
it
is
immune
from
any
system
CPU
spikes
that
might
otherwise
affect
a
software-based
solution.

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miss
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thing.
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[asterisk-biz] HK IDAP using CR13

Has anyone successfully connected to the Hong Kong T1 IDAP from PCCW which uses the CR13? I am able to use the Digium cards but I can only make outgoing calls through it. The incoming calls don't work. The CLI show that the calls do come in but returns with a '0'.

The same thing for the NEC pabx's that are used in HK. They seem to have the same CR13 enabled to their T1 cards. I heard from one NEC agent that the HK version of NEC does not support any other protocol except CR13 for their IDAP connection as well. I find the same problem when connecting to their system with Asterisk over T1 IDAP.

Re: [asterisk-biz] Paranoia, Dell & 3C

On Feb 5, 2008 11:45 AM, Ron Joffe <rjoffe@yahoo.com> wrote:
> On Tuesday 05 February 2008 09:22, Bob Pierce wrote:
> > On Tue, 2008-02-05 at 08:55 -0500, Steve Totaro wrote:
> > > I would go after RAID 5 and redundant power supplies.
> >
> > I totally agree on the RAID 5 and redundant power supplies. It would be
> > irresponsible not to get these.
>
> Dual power supplies are standard, and we do run Raid 1 (Hardware) on the two
> internal drives.
>
> As Drew mentioned Raid 5 is a non starter for true reliable applications. As
> drive sizes have increased, rebuild times for a failed drive have also
> increased, leaving you wide open to a catastrophic loss of data should one
> more disk fail during the rebuild process.
>
> As far as the overall specs, we really don't need more then a single dual core
> proc and 2 GB of Ram, but when you can get dual quads and 8 GB for a few
> hundred more (or less when at the right time) why not. We have been Dell
> resellers for a while, and when they have deals, we can get some ridiculous
> prices.
>
> Ron

I like HP much more than Dell but that is just me. I like the DL380
with nice 36.4gig SCSI drives, I guess with six bays, you could do
RAID 5 + 1 or whatever mirrored RAID 5 is called.

I was a Dell reseller but often found offers MUCH cheaper to buy as
directly as an end user from their site. It became really annoying to
contact my rep, get a quote, give it the client. and then get a call
back from the client that they priced it out online for significantly
less.

I guess that is why they call it a VAR program, you have to add some
value. Not sure how you do that in this crowd.

Tell me what this ridiculous price is for the model and specs you are
quoting above. Let's see how much I can configure it for online or
from the Dell Outlet.

Thanks,
Steve Totaro

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Re: [asterisk-biz] hdwr v. sftwr v. no echo cancellation

Definitely buy hardware echo cancellation, the time and credibility savings are worth the cost.

 

Mark

On Feb 6, 2008 7:21 AM, Sergey Tamkovich <serg@voipsolutions.ru> wrote:

Matt wrote:
> DEFINITELY use hardware echo canc... otherwise you may be upset with
> the quality of some calls.
>

OSLEC looks very promising.

> On Feb 5, 2008 1:22 PM, John Williams <jw.ip.pbx@gmail.com

> <mailto:jw.ip.pbx@gmail.com>> wrote:
>
>     Dear List,
>
>     As we bring up * and migrate from the legacy PBX, its important
>     for my management to experience good quality voice.  Question is
>     whether to use Digium's hardware echo cancellation, Digium's
>     software echo cancellation, or no echo cancellation, on the 8 port
>     FXO card (Digium TDM800P) I am thinking of using during the
>     initial turnup and migration.  Recommendation?
>
>     Thanks!
>
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>

> ------------------------------------------------------------------------

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Re: [asterisk-biz] Session Border Controller

Hi, I am using OpenSBC with some success. - www.opensourcesip.com

Documentation is incomplete, however it is easy to use.

Craig

-----Original Message-----
From: asterisk-biz-bounces@lists.digium.com
[mailto:asterisk-biz-bounces@lists.digium.com] On Behalf Of Gondar Monn
Sent: Tuesday, 5 February 2008 3:37 PM
To: Commercial and Business-Oriented Asterisk Discussion
Subject: [asterisk-biz] Session Border Controller

Any one using one of those on their VOIP network ? Experience with and
without ?

Thanks for sharing !

Gondar

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Re: [asterisk-biz] Pharmacy Online Sale 84% OFF!

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