should migrate easily from 6.1 to 7.0. system must be 6.1 before going to 7.0 upgrade tool is required if upgrading from between 4.1 - 6.0. takes about 20 minutes to come up. your backup will be useless in 7.0 but good to have in case you have to go back. NAM must be 4.1 and if you're running 6.1 it already is.

Have your keycodes available

Marv CCNA, CTUB
TeleMarv Services (Retired)
Providing telecommunication solutions in Ottawa Canada since 1990