I could see something working only if the telco was able/willing to set up a
circuit that sends dtmf digits immediately after a circuit answers (kind of
like some analog voicemail systems do on FXO ports). The context upon
answering would have to take the digits and dialout accordingly to the right
devices.
This, however, would require two miracles, an act of congress, and a note to
the telco from santa claus.
Chris Coulthurst
[EMAIL PROTECTED]
----- Original Message -----
From: "Rich Adamson" <[EMAIL PROTECTED]>
To: "Asterisk Users Mailing List - Non-Commercial Discussion"
<[email protected]>
Sent: Wednesday, August 17, 2005 8:59 PM
Subject: Re: [Asterisk-Users] DID on TDM400P Question?
Does anyone know if the current TDM400 card can take DID digits from the
LEC?
If so is there any reference to how to set this all up? As I get my
current
service from my LEC over an IAD, so would be sweet to just have trunks,
not
each channel specific to a number.
Also if the above is possible, if the line is being used for DID, then
is
this only workable for inbound, or can I also seize the line and use it
for
outbound calls. I know with PRI's that is easy, but never had to play
with
this on an analog port level. Just having a PRI at home isn't practical,
so
not something I can really do.
Not likely to work. Part of the reason is the TDM card essentially answers
a
call when ringing occurs. That "answer" essentially closes the tip-ring
loop
to the pstn (central office), and the central office will interpret that
as
a change in line status. The central office will not forward any more
digits
(dial pulse or dtmf) when that occurs.
If the TDM card supported E&M signaling, then one would have the signaling
structure (to the central office) to support the wanted DID function; but
that doesn't exist and the TDM chipset doesn't support E&M. Last, the
asterisk
code would need to change in such a way as to listen for additional dtmf
digits
_after_ the TDM card closed the tip-ring loop, and I believe that code
doesn't
exist either. (Even if the code did exist, then what method would be used
to
signify to the central office that a call was answered by an asterisk
phone?)
Bottom line... not with a TDM card.
_______________________________________________
Asterisk-Users mailing list
[email protected]
http://lists.digium.com/mailman/listinfo/asterisk-users
To UNSUBSCRIBE or update options visit:
http://lists.digium.com/mailman/listinfo/asterisk-users
_______________________________________________
Asterisk-Users mailing list
[email protected]
http://lists.digium.com/mailman/listinfo/asterisk-users
To UNSUBSCRIBE or update options visit:
http://lists.digium.com/mailman/listinfo/asterisk-users
