Release 4.4.0 to 4.5.1 MR1 - Cisco
Default BTS user (for example btsuser, btsadmin, ciscouser) attributes are reset
to factory defaults of the release to which the system is being upgraded. ......
Shared Memory DB for Call Agent/Feature Server -- data is replicated thru RDM
and utilizes DBM checkpoint library to move data from an old release to a new
release.