Before you begin upgrade scenario 2 (UBA packs only)
About this task
Parent topic: Before you begin a technology pack upgrade
In addition to the prerequisite tasks described in Before you begin a technology pack upgrade, you must also perform the prerequisite
tasks described in the following sections before performing the steps
described in Upgrading currently deployed UBA technology packs to 4.3-U or later and/or Upgrading a currently deployed Nortel CS2000 UBA technology pack to 4.3-Y or earlierUpgrading currently deployed Nortel CS2000 Technology Pack to GenBand C20 Converged IP Softswitch Technology Pack.