OT: Hylafax & digital DID

[Joe Chasan]

On Mon, Aug 09, 2004 at 03:38:21PM -0500, Bill Akers wrote:
> Joe Chasan wrote:
> > 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.
> 
> The manufacturer/reseller of your phone system should be able to point 
> you to a converter that will give the same two wire analog output to a 
> telephone or modem as you get at your home telephone. The converter 
> should be attached to the digital extension line between the telephone 
> system and the modem. Also, a DID number is assigned to a specific 
> extension line in your telephone system. Just make sure that is the line 
> that your modem(and converter) is attached to. Then you probably will 
> have to prefix the outgoing dial with a "9" or something like that but 
> incoming calls will ring directly to that line and be picked up by the 
> modem.

DID is not 2-wire analog - it is a dedicated rj-12 connector which i
believe is different from the regular 2-wire analog - i want the modem
to perform the DID functions, not the phone switch.
 
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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