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

[Steven Critchfield]

On Thu, 2003-11-13 at 12:52, Ed Rubright wrote:
> 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?

Full Duplex, or the ability to have both sides talking at once instead
of using it like a walkie-talkie.

> -----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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-- 
Steven Critchfield  <critch at basesys.com>