We have an Intertel Axxess running v.9 software. We've run night mode successfully for some years and find we cannot change the greeting to that mailbox.We usually change the message during holidays when the office is closed.

AFAIK, the night mode mailbox is #100. We have tried repeatedly to change this greeting, erase and re-record, or change to the alternate mailbox using our documentation but the message does not change.

We have access to the Intertel programming software interface but not too informed on how to use it.

I'm the designated person who tries to resolve phone problems before they end up going to a phone technician. Thanks for any tips how to understand what's going awry.