[Asterisk-Users] I hate to do this but..

[Ed Rubright]

You mentioned that when you enable the aggressive suppression support
you sacrifice FDX.  Forgive my ignorance, but what is FDX?  By
sacrificing it, what am I not getting?

Thanks,
Ed

-----Original Message-----
From: asterisk-users-admin at lists.digium.com
[mailto:asterisk-users-admin at lists.digium.com] On Behalf Of Anton L.
Kapela
Sent: Thursday, November 13, 2003 10:17 AM
To: asterisk-users at lists.digium.com
Cc: asterisk-users at lists.digium.com
Subject: Re: [Asterisk-Users] I hate to do this but..


Jeremy McNamara said:

> Flebay it and use the proceeds to support Digium by purchasing Zaptel 
> hardware.  http://www.digium.com/

I like the zaptel cards, I really do. The price per port is better than
other fxo/fxs's in almost all cases and the support I've received from
Digium is second to none. However, deploying several pbx's for friends
(and using the X100p's), I've come to find that the echo cancellation to
be sub-par when contrasted with other makers. I realize ecan is a huge
and complex issue, but it's central to really convincing me to 'buy'
more Digium hardware.

Such is the catch-22; it seems we need people to buy/support Digium in
hopes that they can improve things overall -- hoping this includes work
on dsp.c to achieve better ecan. It's difficult to recommend that
someone buy 4 or 6 ports of fxo knowing that they'll probably be
complaining to me about excessive echo.

Note: I've tried every possible echo suppressor listed in the Makefile,
and so far Mark2 + aggressive suppression works best, at the sacrifice
of FDX. I'd like FDX and aggressive ecan. <G> This isn't a jab at zaptel
or Mark, this note is to highlite one issue I've had recommending Digium
hardware.

--Tk


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