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When restoring from backups, not all settings may have migrated correctly. You will need to reset which services you want enabled on each machine. These were called "roles" in 4.4, and are now simply a list of services. Navigate to menu in administration user interface : System/Servers. There you will see links along the left hand side of the web page such as "Core Services" or "Telephony Services". Go through each link and enable the services you would like to have running. Hover your mouse over each service for more information about the service and what function it provides. Services will automatically start in about 10-30 seconds after you've applied your changed.
If the 'superadmin' password is not correctly decrypted during the restore, you can use 'service sipxconfig reset-admin' to reset it. You can then log in to the Admin GUI with no password and set a new password.