I am upgrading a Unity 4.03 install to Unity 7.x. There is one exchange 2003 server as the partner. The 7.x install will be on new hardware and I just need to migrate the users from one server to the other. My question is can I install the 7.x software and connect it to the Exchange server while Unity 4.x is still running on this Exchange server? And if so can I then just use GSM to migrate the users?
There is an open caveat for version 4.0(3) using GSM that has a work-around:
GSM: After move, old Cisco Unity server still lights the MWIs of moved subscriber. After moving a subscriber with the Global Subscriber Manager (GSM) tool, the old Cisco Unity server continues to attempt lighting and extinguishing the MWI for the subscriber.
This problem occurs when one or more subscribers are moved with the GSM to a new Cisco Unity server.
Restart the AvNotifierMgr service on the old Cisco Unity server that the subscriber was moved from.
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