Does anyone know if Unity Express 3.1 (or any version for that matter) support an automatic or scheduled MWI refresh similar to what Unity can do, or is it always a manual process via the GUI or CLI?
This is sadly not available in any CUE Version. Here is a short clip;
Note Cisco Unity Express sends an MWI update every time there is a new message in a subscriber's mailbox, not just when there is a state change in a mailbox. Also, Cisco Unity Express does not have the capability to synchronize MWI states automatically at a configured time (or midnight routines), so manual synchronization is a must in case the states get out of synchronization.
From this good doc;
Hope this helps!