Non-working number message with no voicemail

[ITMgr5]

All:
We installed a Mitel 3300 system last year and we're still on the learning curved for how to configure all the bells and whistles.  Consider this scenario:

When a user leaves the company, instead of deleting the extension (to be re-added at a later date) I'd like to reconfigure so that if the number is dialed the caller gets a message that they've reached a non-active number and then re-route them back to the general mailbox and the auto-attendant.  What's the easiest way to accomplish this?  I've seen online that voicemail routing can be turned off but I don't know how to do this.

Any advice appreciated, if there is another best practice you would recommend that would also be of interest.

 

[johnp]

You don't say what vm, but either nametag or acd functions can get multiple to a single MB. As I don't know your setup, I might just change the extension number, create a speed call that goes to what you desire to happen