Doing this will disable the features of continuity. If that is what you desire, continue.
Handoff
- On Mac, choose Apple menu () > System Preferences, then click General. Deselect “Allow Handoff between this Mac and your iCloud devices.”
- On iPhone, iPad, or iPod touch, go to Settings > General > Handoff, then turn off Handoff.
- On Apple Watch, open the Apple Watch app on your iPhone, then tap General and turn off Enable Handoff.
Calls
- On iPhone, go to Settings > Phone > Calls on Other Devices, then turn off Allow Calls on Other Devices.
- On iPad or iPod touch, go to Settings > FaceTime, then turn off Calls from iPhone.
- On Mac, open the FaceTime app, then choose FaceTime > Preferences. Click Settings, then deselect Calls From iPhone.
Messages
On iPhone, go to Settings > Messages > Text Message Forwarding, then switch off text message forwarding for all (or whichever) device you desire.
For more info: Use Continuity to connect your Mac, iPhone, iPad, iPod touch, and Apple Watch - Apple Support
