How to Disable iPhone Calling in MAC
Step 1. Go to Settings on your iPhone.
Step 2. Click on the Phone option.
Step 3. Then click on the option ‘Call on other Devices’.
Step 4. You will find an option ‘Allow Calls on Other Devices’.
Step 5. Toggle off the option of ‘Allow Calls on Other Devices’.
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Step 6. iPhone calling on Mac will be disabled.