Followed Apple Support, still cannot make or receive calls on IMAC to
My IMAC (2015) model stopped receiving iPhone calls about six months ago. Even recent up grade to OS did not help.
iMac 27″, macOS 12.6
Well, since no one here is an Apple employee, just users like yourself, all we can do is refer you to the ‘Related Article’ at the top of this page. Your iPhone settings are the key to this working. Of course you must be signed in to your iPhone and your Mac with the same Apple ID