Go to Settings>FaceTime and then turn it ON on both devices. Scroll down to the section that reads, "You can be reached by FaceTime at" and make sure that whatever is checked on one device is also checked on the other, whether it be the associated phone number and/or your Apple ID.
Go to Settings>FaceTime and then turn it ON on both devices. Scroll down to the section that reads, "You can be reached by FaceTime at" and make sure that whatever is checked on one device is also checked on the other, whether it be the associated phone number and/or your Apple ID.
That’s how I roll. I have my MBP, iPad and iPhone configured as you describe... and I can answer a FaceTime call from whatever device is handy at the time.