Tunk type connecting Nortel to Avaya

[joeban]

I have a question about the type of tunk type to connect Nortel to Avaya. a Point to point connection betwee the 2 PBX's . On the Nortel side my service provider programed the PRI with the DID trunks rather than TIE trunks. I was watching when he was doing the programing and for some reason when he programed the D-Channel as NI2 the Switch did not accept the Trunk type as TIE and that why he programed it as DID. I have asked the qestion Why? he said it is a merly naming !!!!!!. can somebopdy please shed a light on this. I need to start testing between the 2 sites but I would like to solve any issues on the Nortel side"my side before I start testing with Avaya.
Thanks

 

[9201]

You need to program as TIE trunk for either switch to make call out thru switch. Like Avaya Tandem thru Nortel.

 

[joeban]

so the way it is programed with DID will not work and both sides has to be Tie trunks.
The Nortel side is the Network and We have the D channel as NI2. Since it is not allowing us to do Tie changing the D-channel to other the NI-2 any suggestion?.
Thanks

 

[yyrkroon]

Change the DCH Protocol to QSIG, ISGF or ESGF if you're in Europe. Your tech is correct, you can't have NI2 Protocol on TIE.