Our old system allowed for a a voice mailbox to have it’s own greetings but any messages got copied to another mailbox.
Voicemail Blasting doesn’t seem to be a fit since it doesn’t play an unavailable message prior to the caller leaving a message.
Call flow looks like:
Person calls -> Ring Group 101 -> Failover to voice mailbox 101 -> message copied to mailbox 102.
There is no other checking or processing.
freepbx-13.0.101-1.shmz65.1.46.noarch on FreePBX Distro