[Asterisk-Users] ANI & DNIS sent to analog FXs Port Possible

[Craig Guy]

Asterisk (at least stable v1.06) does not seem to support DNIS. - DNIS and
$EXTEN are not the same thing.

We have discovered this recently where we had a block of telephone numbers
in Adelaide diverted to a second block of numbers in Perth.  $EXTEN in
asterisk showed the local Perth number rather than the Adelaide number
originally dialled by the caller.  $RDNIS also failed to show the original
Adelaide dialled number.  The setup we have is where the E1 from the telco
connects to span 1 on the TE405 and then span 2 connects to a Dialogic E1
board.  If we dial the call through from span 1 to span 2 without answering
it, the DNIS variable on the dialogic shows the correct DNIS number - ie the
Adelaide one.  So to me it demonstrates that at keast zaptel or libpri is
aware of the DNIS, it just doesn't seem to make it available to Asterisk.

Craig

----- Original Message ----- 
From: "Ronald Hartmann" <RHartmann at nnamtraH.com>
To: <asterisk-users at lists.digium.com>
Sent: Sunday, March 20, 2005 1:48 AM
Subject: [Asterisk-Users] ANI & DNIS sent to analog FXs Port Possible


> Good Day list,
>
> Need assistance determining the best place to read up on whether
> Asterisk can help me out.
>
> I have a situation where I need to do the following
>
> <PRI from Telco> -------
> <Analog Channel Bank>------------<Proprietary Box>
> |
> |
> |
> |
> |
> |
> <PRI Port 1 of
> Digium Quad T1> <PRI Port 2 of Digium Quad T1>
>
> |
> |
>
> |
> |
>
> |
> |
>
> ---------><Asterisk Box with Quad T1>------------------
>
> |
>
> |
>
> |
>
> -------------------------------------------------------
>
> | | |
> |
>
> | | |
> |
>
> ext. 100 ext. 101 ext 102 ext 103
>
>
> A standard T1 or PRI service are both digital and require to be
> converted to Analog to work onto the Proprietary System, as the need to
> receive analog with the DNIS and ANI information is important a product
> must be used which will allow for this.
>
> <YUCK> The Lucent G3, Intertel and Comdial switches are capable.</YUCK>
> I want to put Asterisk in here
>
> All PBX switches must have the capability of passing the DNIS (DID) and
> ANI information onto an FSX analog port, please check your current
> switch or talk to your provider.
>
>
> My question is :
>
> "Am I correct in thinking that I can have asterisk answer the
> incoming call from telco on the PRI, Grab the ANI/DNIS Information and
> then route it to a channel back via a second PRI Port and have the
> channel bank pass the ANI/DNIS of the original caller oout to the
> proprietary box in an analog fashion?"
>
> My understanding is that the Proprietary box does its magic and then
> would need to transfer the call back to a Specific user on the PBX via
> flash hook transfer.
>
> If I am on the right track can anyone point me in direction of channel
> backs that will accept Digital "PRI/T1" connection on the front and
> "Analog connection on the back"?
>
> Is there a better way to do this? Maybe a Sip Analog Gateway?
>
> Anyways, thanks for your help in sorting through this with me.
>
> ~ron
>
>
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