asterisk users - Jun 2003 - use of Asterisk and T100P as Nortel DSX-1?

Hi all,

I've seen a couple of posts recently from people who are doing
something with Asterisk and a T100P and a Nortel PBX.  However it's
not clear exactly what they are doing.

Does anyone know if it's possible to use a T100P or T400P as a DSX-1
interface to connect to a T1/PRI CO module in a Nortel PBX?  We have
a Nortel Norstar Modular ICS PBX and I'd like to plug its CO module
into an Asterisk server, for interesting reasons.

Nortel's ATA/ASM for analog stations are not suitable for use with a 
softswitch like Asterisk and FXO interfaces.  Also, Nortel has no T1 
station module, so I think I could only connect Asterisk to a CO card.  
In this case, the Asterisk server needs to act like a telco for the 
purposes of the Norstar.

Will this work?

Also, I'd need to set DID digits on calls delivered to the Norstar
so that I could control the call routing.  All of the posts I've seen
to this list indicate that Asterisk can decode DID digits, caller ID,
etc. that are delivered to it, but I haven't seen any indication that
Asterisk can SET the DID information on a call being delivered to another
PBX.

Will this work?

I already know how to use coordinated call routing to deliver calls
from the Norstart to Asterisk.

These ideas would be a really handy use of Asterisk.  If this stuff won't 
work, what might it take to make it work?  I suspect it's more complicated 
than just using some sort of crossover cable and connecting them together.

Thanks to the list denizens I've learned how to make Asterisk interface
very nicely with a dumb pbx using the Flash and SendDTMF functions, but
I would love to know the best way to make ASterisk interface with a
smart PBX.

Thanks a lot,
Jim

-- 
Jim Ockers, P.Eng. (ockers@ockers.net)
Contact info: please see http://www.ockers.net/

while I am not using this configuration, I can offer a few answers :


At 11:39 AM 6/26/2003 -0600, you wrote:
>Hi all,
>
>I've seen a couple of posts recently from people who are doing
>something with Asterisk and a T100P and a Nortel PBX.  However it's
>not clear exactly what they are doing.
>
>Does anyone know if it's possible to use a T100P or T400P as a DSX-1
>interface to connect to a T1/PRI CO module in a Nortel PBX?  We have
>a Nortel Norstar Modular ICS PBX and I'd like to plug its CO module
>into an Asterisk server, for interesting reasons.
yes, you can, the signalling on a t1 is not really that different in either 
direction.
The actual circuit is a dsx-1 yes.

>Nortel's ATA/ASM for analog stations are not suitable for use with a
>softswitch like Asterisk and FXO interfaces.
(in my experience they aren't suited to much)
>  Also, Nortel has no T1
>station module, so I think I could only connect Asterisk to a CO card.
>In this case, the Asterisk server needs to act like a telco for the
>purposes of the Norstar.
>
>Will this work?
>
>Also, I'd need to set DID digits on calls delivered to the Norstar
>so that I could control the call routing.  All of the posts I've seen
>to this list indicate that Asterisk can decode DID digits, caller ID,
>etc. that are delivered to it, but I haven't seen any indication that
>Asterisk can SET the DID information on a call being delivered to another
>PBX.

my understanding of the PRI in simplified terms is like this. The D channel 
is used to signal in both directions. So, asterisk could say to the PBX, 
hey, channel 1 wishes to connect to 905-680-0436, please provision and 
connect the call on your end. Then the pbx does its thing, and replies OK 
back on the D channel to asterisk to let it know the call is completed. 
this is your DID number (but that is the term for it on PRI), caller id of 
the originator would also be passed in as part of the D channel messaging.

Conversely the PBX could say to asterisk, channel 5 wants to make a call to 
whatever and this is the number the call should appear to originate from. 
Asterisk does its thing, and replies OK, or BUSY or whatever other 
signalling codes apply to the attempted call.

>Will this work?
>
>I already know how to use coordinated call routing to deliver calls
>from the Norstart to Asterisk.
>
>These ideas would be a really handy use of Asterisk.  If this stuff
won't
>work, what might it take to make it work?  I suspect it's more
complicated
>than just using some sort of crossover cable and connecting them together.
shouldn't be no.

>Thanks to the list denizens I've learned how to make Asterisk interface
>very nicely with a dumb pbx using the Flash and SendDTMF functions, but
>I would love to know the best way to make ASterisk interface with a
>smart PBX.
T1 w or w/o PRI signalling are really the only "standards" you are
going to
find on pbx's that I know of.

>Thanks a lot,
>Jim
>
>--
>Jim Ockers, P.Eng. (ockers@ockers.net)
>Contact info: please see http://www.ockers.net/
>_______________________________________________
>Asterisk-Users mailing list
>Asterisk-Users@lists.digium.com
>http://lists.digium.com/mailman/listinfo/asterisk-users

Hello-

I know this is a basic question, but before I start down the road of using
Asterisk open source software, I thought I would ask if someone could please
tell me definitively whether Asterisk and Digim will connect with EuroISDN
using E&M protocol, and pass the caller's number (CLI) and dialed number
(DDI) to the software so I can see them in variables?

I need this for an application that I'm proposing.

Thanks in advance,
Scott Stingel



Scott M. Stingel 
Emerging Voice Technology Inc.
Palo Alto, California and London, England

Email:          scott@evtmedia.com  
URL:            www.evtmedia.com

> -----Original Message-----
> From: asterisk-users-admin@lists.digium.com
> [mailto:asterisk-users-admin@lists.digium.com]On Behalf Of Jim Ockers
> Sent: Thursday, June 26, 2003 11:39 AM
> To: asterisk-users@lists.digium.com
> Subject: [Asterisk-Users] use of Asterisk and T100P as Nortel DSX-1?
>
>
> Hi all,
>
> I've seen a couple of posts recently from people who are doing
> something with Asterisk and a T100P and a Nortel PBX.  However it's
> not clear exactly what they are doing.
>
> Does anyone know if it's possible to use a T100P or T400P as a DSX-1
> interface to connect to a T1/PRI CO module in a Nortel PBX?  We have
> a Nortel Norstar Modular ICS PBX and I'd like to plug its CO module
> into an Asterisk server, for interesting reasons.
You can use a Norstar T1 or E1 card to interconenct with asterisk. T1 card
is supportted in DR5 but for E1 card I thing that you need Software release
6. There is an upgrade kit for norstar, includes hardware, software and key
codes to enable PRI functions

>
> Nortel's ATA/ASM for analog stations are not suitable for use with a
> softswitch like Asterisk and FXO interfaces.  Also, Nortel has no T1
> station module, so I think I could only connect Asterisk to a CO card.
> In this case, the Asterisk server needs to act like a telco for the
> purposes of the Norstar.
>
> Will this work?
>
> Also, I'd need to set DID digits on calls delivered to the Norstar
> so that I could control the call routing.  All of the posts I've seen
> to this list indicate that Asterisk can decode DID digits, caller ID,
> etc. that are delivered to it, but I haven't seen any indication that
> Asterisk can SET the DID information on a call being delivered to another
> PBX.
 Will this work?
When PRI us used, you can use Nortar target lines in order to redirect
incoming calls based on incoming digits
> I already know how to use coordinated call routing to deliver calls
> from the Norstart to Asterisk.
>
> These ideas would be a really handy use of Asterisk.  If this stuff
won't
> work, what might it take to make it work?  I suspect it's more
> complicated
> than just using some sort of crossover cable and connecting them together.
>
> Thanks to the list denizens I've learned how to make Asterisk interface
> very nicely with a dumb pbx using the Flash and SendDTMF functions, but
> I would love to know the best way to make ASterisk interface with a
> smart PBX.
>
> Thanks a lot,
> Jim
>
> --
> Jim Ockers, P.Eng. (ockers@ockers.net)
> Contact info: please see http://www.ockers.net/
> _______________________________________________
> Asterisk-Users mailing list
> Asterisk-Users@lists.digium.com
> http://lists.digium.com/mailman/listinfo/asterisk-users
>