[Asterisk-Users] FXOs

[Marcelo Mercio Dandrea]

Hello,

        I´ve been doing tests with a Softphone and a TDM400 with two FXO
modules. At first, I had echo and specially gain problems with it, but after
enabling Mark2/Aggressive echo cancelation, the echo problem vanished. The
gain problem seems to be due to (I suppose) some noise induced by my sound
card. I´ve monitored it using ztmonitor, and the TX gain was fixed on the
top. On the PSTN side, this resulted in "periods of silence" from time to
time. When I changed my soundcard, the problem vanished.

Marcelo

----- Original Message ----- 
From: <mgraves at mstvp.com>
To: <asterisk-users at lists.digium.com>
Sent: Friday, August 27, 2004 12:41 PM
Subject: [Asterisk-Users] FXOs


> Hi All,
>
> I'd really like to see a show of hands with regard to people's
> experience with FXO interfaces. I own a few X100p cards and have had
> nothing but problems with them.
>
> I also took part in Sipura's beta program, for the SPA-3000. While it
> can be an improvement over the X100p, it presently has echo problems
> that make it unusable. Sipura has not acknowledged the problem ( at
> least to me) although several in the user community make refernce to
> new firmware that might address the issue, real soon now.
>
> I see a lot of activity recently on-list about the TDM-400. Of course,
> mentions on-list are more than likely the result of people having
> problems. We don't hear about people who have no issues with a product.
>
> So, the nature of my inquiry is to explore how many people out here have
> good/great experiences with the various small FXO adapters? While the
> TDM-400 is my next possible purchase I'd also like to hear about
> devices from Welltech, Clipcomm, Micronet, Multitech, Immixtel, etc.
> With so many products being offered I would hope that we have some
> collective experience with each one.
>
> Thanks,
> Michael
>
>
>
> Michael Graves
> Sr Product Specialist
> Pixel Power Inc
> mgraves at pixelpower.com
> o(713)861-4005
> o(800)905-6412
> f(713)864-8668
> c(713)201-1262
>
>
>
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