Polycom 311 Desktop phone - How do I setup my voicemail greetings?

Attached is a guide to setup voicemail with your Polycom 311 desktop phone.  It is recommended that you record a custom personal greeting for those times when you are on the phone, or for when you are away from the office or on Vacation. There is also an option to record and activate an extended absence greeting for leaves or other long absences.