On 11/18/05, Andrew Kohlsmith <[EMAIL PROTECTED]> wrote:
Andrew, I really don't buy that. Everyone seems to blame everything else other Digium for faulty products. Would you be as soft on the vendor if it was Microsoft?
The simple fact is they have made a fantastic PBX software product and along with some reasonably priced PC telephony hardware. However echo elimination is clearly lacking in all their products. If you simply take this fact into account when planning installations, you will save yourself a lot time and trouble.
On Friday 18 November 2005 00:30, Eric Bishop wrote:
> I purchased the following item:
> http://www.oriontelecom.com/echo_canceller/1u_telnet/e1_1u_19inch_ec.html
>
> As you can see not a very highly spec'd product but does the job well.
Perhaps not highly specc'd but with tail lengths of 64ms bidirectional or
128ms unidirectional, it's already more capable than the software cancellers
(16ms unidirectional with echocancel=128) and I believe that the VPM isn't
all that much better, but I'm not 100% sure now that I can't find the specs
on it.
> I don't accept the fact that mine is a special case. In fact if anything it
> should be better than most other scenarios as we are using Tier 1 hardware
> (all HP), Digium Rev 2 firmware and our rack is about 10 metres from the
> CO.
None of that really matters -- it's the overall disance from your RJ48 to the
far end's phone that determines the TDM delay, and delays in your
motherboard's PCI implementation that cause echo. By far mostly the latter.
Andrew, I really don't buy that. Everyone seems to blame everything else other Digium for faulty products. Would you be as soft on the vendor if it was Microsoft?
The simple fact is they have made a fantastic PBX software product and along with some reasonably priced PC telephony hardware. However echo elimination is clearly lacking in all their products. If you simply take this fact into account when planning installations, you will save yourself a lot time and trouble.
-A.
_______________________________________________
--Bandwidth and Colocation sponsored by Easynews.com --
Asterisk-Users mailing list
[email protected]
http://lists.digium.com/mailman/listinfo/asterisk-users
To UNSUBSCRIBE or update options visit:
http://lists.digium.com/mailman/listinfo/asterisk-users
_______________________________________________ --Bandwidth and Colocation sponsored by Easynews.com --
Asterisk-Users mailing list [email protected] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
