how do i receive facetime calls made to my iphone but answer on my MAC Book Pro?

Hi,

You need to link them first

https://support.apple.com/en-gb/guide/facetime/fctm264ce831/5.0/mac/10.15#apd0d0e0317aae54

Ralph

Hi, to receive FaceTime calls on multiple devices you need to first be signed in on both devices, second the device needs to be running. Then when you are FaceTimed on your phone your Mac will also receive the call. I hope this was helpful.