Nortel Modular ICS 6.0 Installer's Manual page 195

If no alarm-event messages are observed, the upgrade to
the new MICS software has been performed.
If alarm codes are displayed, refer to Alarm codes on page
506 for definitions.
If event messages are displayed refer to Event messages on
page 514 for definitions.
11. Once you confirm your system information, you can
choose to upgrade to the MICs 6.0 software. Refer to
Upgrade from 4.0, 4.1 or 5.0 to 6.0 on page 189.
Notes
Ensure that you maintain an accurate record of your existing
system programming so that you can plan your new system
programming appropriately.
If you have a Norstar system with a Modular 8X24 Key
Service Unit (KSU), you cannot upgrade your software with
the Upgrade Tool. If you want to upgrade to MICS 6.0, you
P0992638 03
All old programming is maintained when
upgrading from the 0X32 Release 1 - T1
software, with the following exceptions:
• all system passwords are returned to the
system defaults
• ATA ans timer setting is returned to the system
default setting
When upgrading from MICS 1.1, note that the
Call log space has increased in newer
versions.
Reallocate log space after upgrading.
Planning the installation / 195
Modular ICS 6.0 Installer Guide