Installing the 384i/704i T1/PRI Interface PCB (P/N 92190)
System Requirements:
 T1/PRI Interface PCB, P/N 92190 or 92190A
 System software: 384i software version 4.00.24 or higher or any version of 704i
 T1/PRI PCB firmware 3.1 or later. If your T1/PRI PCB is P/N 92190A (series CL or 4.0), there is no
firmware upgrade required.
 For DTMF receivers with such options as ANI/DNIS, a Tone Detector (CDTU A/B) PCB

It can use NI-1 or NI-2 but not custom. Just tell your dialtone provider you need NI-2 , that's what I always do. Hope this helps.