source: http://forums.macrumors.com/showthread.php?t=1757410
I searched the Internet for hours trying to figure out how to get Hand off and Continuity and phone calls to work. I thought I'd put all that stuff in one place and hopefully save someone the trouble of trying to collect this information themselves.
Initial Steps:
-On your Mac go to About this Mac > System Report. Under the Bluetooth Category your LMP version needs to be 0x6.. Anything lower will not work.
-On Your Mac: Go to system preferences > General > and click the "allow handoff" box at the bottom.
-On your iDevice Go to settings > general > and enable hand off.
-On your Mac open FaceTime and go to preferences. Check the "allow iPhone calls" box.
Next few steps:
- Make sure Bluetooth and Wifi are turned on for both devices.
- Make sure you are logged in to the same iCloud account on both devices.
- Make sure that your FaceTime is also logged in to the same account (this is needed for the phone calls feature to work).
- Make sure you are on the same Wifi network. Especially if you have a dual band Router. Both devices need to be on the same band to work. Don't connect to 2.4ghz on on device and 5ghz on the other.
How to verify Hand off actually works or not:
-
If you open a web page in Safari on your iDevice you should get a bouncing icon on your Mac computer dock that shows up on the left end of the dock (it will kind of look out of place).
-
If you open a web page on your Mac with Safari the lock screen of your iDevice should show an icon opposite the camera icon. Swipe up to open it.
Making phone calls
Open the contacts app on your Mac IF you click the phone icon it should say calling using iPhone.
Hope this helps.
P.S. you do NOT need to pair your devices.
Forgot to add if Safari is in private mode it doesn't hand off.