[VoIP] DP-compatible ATAs

[Shane Young]

Quoting Steph Kerman <stfkerman at jps.net>:

> True but I believe that machines that inherently have metallic 2W trunks
> should be connected directly together and not go back and forth between
> 2W analog and 4W digital any more times than necessary.  As long as my
> DID trunk is delivered on analog copper, I won't be inserting an *
> between the PSTN and my switches for this reason.  I have no objection
> to inserting an * between an inherently 4W digital medium like CNET and
> my switches.

> In the context of the switching environment under discussion, that's
> true as long as you don't object to going back and forth 2W analog and
> 4W digital N times.

So, let me see if I can summerize your thoughts into this sentance.   
"If you are going to do it, do it right."

That is how I feel.



> I thought * had some built-in echo canc. capability.  Is it too lame to
> be useful?

I've had problems with it.  It is supposed to be better now in 1.4,  
I'll have to try it :)

I don't recall what it's echo canceling ability is on an all-IP call  
(internet to ATA is all IP and the ATA's are bad at echo canceling)