Technical information
Routine Maintenance
169
Routine
Maintenance
Before You Begin
Read the Field Change Instruction (FCI) for the new 
software.
! The FCI includes the latest information about your new 
software, including special upgrade notes. Read it now.
Check Your Options and Have Your Password Ready
(new passwords are not required for stream upgrades to a Lightware 
stream later than Lightware 30 .)
! Have your SX-2000 Feature Options Record sheet with 
you.
! Confirm that the options listed are the ones purchased for 
the system.
! Confirm whether the system has custom dimensions 
(Flexible Dimensioning).
Prevent Data Loss
! If you’re upgrading from ANSWER PLUS™ - ACD to 
ACD 2000, see the ACD section on the MITEL Technical 
Documentation CD-ROM.
! Message Waiting lamps are turned off during a software 
upgrade.
– Lamps for Message Center messages can be restored 
if you back up your Message Center messages before 
you begin this procedure and restore them when the 
upgrade is complete.
– Lamps for voicemail messages can only be restored if 
your voicemail system can be refreshed after the 
upgrade is complete.










