Control your voicemail via your Outlook Web email account
Call Answering Rules
How to Setup Voicemail to Transfer to Someone Taking Your Calls - FYI - the rule only applies if the call comes to your phone first, then kicks into voicemail. If your phone forwards to another person (receptionist, your back-up, etc.) and doesn't automatically transfer into voicemail, the rule will not apply.
Additional Information on Call Answering Rules