Nortel Meridian 1 Manual page 565

8-122 Meridian 1 option 21 upgrades
Table 8-16
Database conversion requirements, option 21 or 21E to an option 61C
X11
release
ROM card
required
From To
For converting a release 15.57 or 16 customer database
(Use conversion procedure beginning on page 8-123)
15.57 17 QPC940
or 16
17 19 NA
19 21 NA
For converting a release 17 or 18 customer database
(Use conversion procedure beginning on page 8-125)
17,18 19 N/A
19 21 N/A
For converting a release 19 or 20 customer database
(Use conversion procedure beginning on page 8-125)
19,20 21 N/A
Note: Use the latest software release (e.g., 15.xx) acquired from your Northern Telecom representative. If a
specific issue is indicated (e.g., 15.53 and 15.57), it must be used.
553-3001-250 Standard 14.00 August 1996
Software required (see note)
Release 17.xx option 21 software disk and data cartridge
Software Installation Tool
Software Installation Tool
Software Installation Tool
Software Installation Tool
Software Installation Tool