
2-1
Nortel IVR 2.5/S Aculab-Based E1 CAS/ISDN PRI Signaling Guide
Chapter 2: System requirements
The base Nortel IVR 2.5/S system already includes the system requirements
listed here for installing and using the Aculab-based E1 CAS/ISDN PRI
Signaling option update for MRS 3.02.02. Specifically, these requirements
are
•
MRS 3.02.02 software running on the MRS
•
SCO UNIX Release 3.2 (Version 4.2) operating system
•
MRS/AP
,
MRS/Tower
,
and
MRS/Rack with at least 32 Mbytes of
memory and 128 kbytes of cache memory