I can see I did not have enough details for my scenario. Sorry about that.
User1 phone is 1 of 3 users set up as a key system for the (i.e med records dept). There is a DID assigned w/voicemail so any of them can pick up the messages.
But, User1 does scheduling in the afternoons. They don't want people calling User1 back about appointments and leaving messages mixed in with Med recs stuff.
They also don't want to give User1 their own DID & voicemail. And they don't want to create a DN just User1 can have a voicemail.
But if people could call back to the switchboard and just be transfered to a voicemail, which then just User1 can pick up, would work.
I hope this explains it better ?
Thanks !