Thanks Dave, but that setting is on for her iCloud.com and her @me.com account. The M2 computer logs in that there was a FT call at the time I sent it (photo), but the call doesn’t open. Both her iPhone and old MB Air receive immediately. We turned off both, but still FT calls are not received on the new M2 but she can successfully call out with FT.Sorry if this is obvious but FaceTime > Settings > General. Does everything there look as you would expect, including entries for "You can be reached for FaceTime at" ?
Dave