Linking 2 x 3300 with E1 procedure.

[pea123]

Hie to you all.
I thought I knew this but have just proved to myself that I dont.
How do link up 2 x 3300 together using the E1?

I know how to connect a single pabx E1 to ISDN PRI.Do I do as if I am connecting each pabx E1 to ISDN PRI then do my ARS pointing one pabx to the other or its more complicated than that?Can someone please take me through the set up.
To expand on that , is it possible to have the pabxs one sitting on top of the other then connect their E1 ports with a cross over cable(Rx->Tx, Tx->Rx) without the actual ISDN PRI service & the connection work?

In short,1. take me through how to set up a E1 link between pabxs (assuming I have a proper ISDN service)and 2. can the linking be done by connecting up the E1s with a cable without the actual ISDN facility?

Thank you.

 

[kwbMitel]

Crossover AND LT setting one side and NT the other

I have a document on how to do it on a single system but no access to upload right now

**********************************************
What's most important is that you realise ... There is no spoon.

 

[pea123]

Im assuming (you are implying that the E1 programming on both sides is the same as when you want to connect to a PRI) because you did not confirm. If not please try your best to post your document, maybe copy & paste.

Thanks.

 

[danramirez]

I would link the two 3300 using DPNSS, this way you will pass more information between the two PBXs every time you make a call. I did it long ago and as far as I remember I used a straight through cable tx-tx/rx-rx (Not ethernet) and selected LT on one side and NT on the other side. I also remember setting up opposites address for message controls (A/B), and Dual seizure priority in the Circuit descriptors accordingly.

One question? Why don't you use Xnet IP Trunking?

Regard,

Daniel

http://www.hatkana.com

http://www.wtelecom.com

 

[pea123]

Xnet IP Trunking is not available so it is not a choice. Hope you remind yourself of the full details then you can post the dpnss configs in detail.
Thanks.

 

[danramirez]

pea,

I will copy screen shots from the programing and post back in about half an hour.

Regards,

Daniel

http://www.hatkana.com

http://www.wtelecom.com

 

[danramirez]

Pea,

I was able to connect to a site which's got an SX2000 and a 3300 linked together over DPNSS. Have a look at the attachment, it shows all programming on the 3300.

Make sure you program one PBX similar to the screen shots attached and make sure you program the opposite on the the other switch for the following fields:

Address for message control
Termination Mode
Dual Seizure Priority

for the trunk COS make sure you've got Public Network Access via DPNSS enabled.

ARS will be the tricki part, make sure you understand and plan the digit handling b/ween the two switches. Shout if you need additional help.

Regards,

Daniel

http://www.hatkana.com

http://www.wtelecom.com

 

[LoopyLou]

What you want is to setup MSDN. This will allow you to connect the two 3300's with full feature transparency and create a cluster. Should be enough in the help files to get you going. Just need to create a cross over cable for the physical connection.

Program MSDN/DPNSS trunks
Before You Begin
Ensure that a Universal Network Services Unit is programmed.

Ensure that Interconnect Restriction and Intercept Handling is programmed for each trunk.

Programming
To program MSDN/DPNSS trunks:

Digital Link Descriptors form
Enter "A" or "B" in the Address for Message Control field.
Enter "DPNSS" in the Integrated Digital Access field.

Digital Links form
Enter the Digital Link Descriptor Number programmed in step 1.

Class of Service Options form
Set the ANI/DNIS ISDN Number Delivery Trunk field to "Yes".

MSDN-DPNSS-DASS II Trunk Circuit Descriptors form
Select "CEPT" or "DS1" from the Card Type field if cards are installed in DSU cabinet.
Enable "Incoming" or "Outgoing" from the Dual Seizure Priority field.
Select "MAIN PBX" from the Far End Connection field.
Enable "MSDN-DPNSS" from the Signaling Protocol field.

Trunk Attributes form
Enter the COS number programmed in step 3.
Complete the Non-dial in Trunks Answer Point fields.
Complete the Dial in Trunks: Incoming Digit Modification fields.

Digital Trunks form
Complete the Trunk Number, Trunk Service Number (from step 5), Circuit Descriptor (from step 4), and Interconnect Number fields.

Network Synchronization form (optional)
Assign a source connection to a Network Source Clock.



I'd tell you a UDP joke but I'm afraid you won't get it. TCP jokes are the best because you always get them.

 

[pea123]

Thank you all. You have been of great help.I have put together all the above advice & have succeded.