Has anyone gotten this feature to work? I haven't... is there a setting that needs to be enabled? ORRRRR, did I miss that this feature isn't currently available yet in the public beta?
As far as I can see from my Mac there is nowhere to insert a sim card, and so therefore it can't make or receive calls.
As iOS isn't linked to this public beta program, you won't have any 'phone' related services on your mac.