I've used handoff/continuity for iMessage and phone calls on a few of my Macs, just updated my work Mac to 10.11 from 10.9 and i cannot figure out how to get Text Message forwarding or iMessage configured. Which is even more annoying since I've configured this many times before. When i add an account in the Messages App i don't have iMessage as an account type to add (or in 'other', see screenshot), and when i go to the iCloud System Preferences i don't have anything for iMessage. My phone calls are coming through to my Mac fine, and i also don't see my Mac listed on the phone in Messaging -> Text Message Forwarding. What am i not doing?