I have used both Sangoma and Digium cards. As far as TDM2400p with echo canceller is concerned, we had issues with static and choppy voice on the SIP side. However PSTN receivers had no issues. We called digium and they logged in remotely and found no issues in configuration. We are forced to move away from TDM2400p due to quality issues.

We were also stuck with analog lines and approached Sangoma. It had no problems right from the start. Voice quality was excellent when compared to digium's card.


Regards
Sampath

On 9/25/06, Jay R. Ashworth <[EMAIL PROTECTED]> wrote:
On Mon, Sep 25, 2006 at 09:27:12PM -0400, Dave Fullerton wrote:
> I never really considered one. I've never used one for that matter. This
> system is really only a testbed. If it works out, then in 6 months to a
> year we'll put asterisk in main site and all the phones in this location
> will slave off that system.
>
> But, I went to atacomm.com and tried to spec out a channel bank solution:
>
> Rhino Chasis: $750
> 2 4port FXO cards: $599
> TE110P: $499
> Echo canceler: ????
> Total: $1848
>
> A TDP2400 8 FXO with echo can module: $1093
>
> Mine didn't come out cheaper, what kind of equipment do you recommend?

I think he meant something more like this:

http://www.thevoipconnection.com/store/catalog/product_16317_AudioCodes_Analog_Gateway_MP1188_FXS.html

Which I can't *recommend*, since I haven't used one... but like that.

Cheers,
-- jra
--
Jay R. Ashworth                                                [EMAIL PROTECTED]
Designer                          Baylink                             RFC 2100
Ashworth & Associates        The Things I Think                        '87 e24
St Petersburg FL USA       http://baylink.pitas.com             +1 727 647 1274

        "That's women for you; you divorce them, and 10 years later,
          they stop having sex with you."  -- Jennifer Crusie; _Fast_Women_
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