OT: Hylafax & digital DID

[Joe Chasan]

On Mon, Aug 09, 2004 at 01:32:17PM -0400, Jay R. Ashworth wrote:
> On Mon, Aug 09, 2004 at 12:37:48PM -0400, Joe Chasan wrote:
> > what digital to analog converters are you referring to?  from what
> > i've learned, there are big differences in the way they work - the
> > multitech's expect, as analog DID, to provide voltage to line,
> > something around 48V, whereas in digital, the CO provides the voltage.
> > Is this some specialty converter?
> > 
> > i know i can plug an single line phone in and make it ring on demand,
> > but i don't think the DID DTMF would get passed through in such a
> > situation. 
> 
> I believe that Bill is referring to boxes like the Adtrans, which can
> take DTMF DID on a t-span and convert it to CNID so an analog modem can
> pick it off.

Adtran doesn't have anything specific for this that i can find -
remember, i need the DTMF tones passed _after_ off-hook.  the best i
can think to do with adtran is to put some sort of device before the t-1
switch and convert it to analog there, but thats no cheap adaptor and also
assumes advanced knowledge of which channel's the incoming call is coming
in on which i don't know that I have or who to talk to at telco to even
ask.  it also complicates things if i wanted dial-in and dial-out on
it.

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-Joe Chasan-                      Magnatech Business Systems, Inc.
joe at magnatechonline.com           Hicksville, NY - USA
http://www.MagnatechOnline.com    Tel.(516) 931-4444/Fax.(516) 931-1264