Reads like an advertorial. Nothing about all the ways that Apple is violating privacy unknown to the majority of it's users. Eg.
- all numbers called go to Apple, no way to stop them spying on you
- stopping iCloud sync/backup is elaborous and error prone
- WiFi and Bluetooth emit their presence at all time
- etc, etc.
iDevices that share the same Apple/iCloud ID will have content synched amongst the devices, and will "ring" once a call is received if the Handoff/Continuity feature is enabled and therefore you will see calls on the log of both phones.