I've checked the following:
I'm running El Capitan on the MAC and IOS 9.2
I'm logged into my i-cloud account on the MAC, and I-phone, FaceTime is logged into my I-cloud account
Both devices are logged into my home wireless network
Phone is set to allow calls on other devices (and even shows my MacBook Pro as a choice with the button on)
I used to see the notification on my MAC for an incoming call as shown in help.apple.com under "Use Your Mac to make and receive phone calls"
I did not do anything or turn anything off that I know of, but it just stopped working - several weeks ago
Any other suggestions?