Hi k283,
The following steps address what you're describing specifically, and should provide a solution:
"Make sure that your Mac, iPhone, and iPad meet the Continuity system requirements.
Your devices must also be near each other and set up as follows:
- Each device is signed in with the same Apple ID.
- Each device is signed in to FaceTime with the same Apple ID.
- Each device has Wi-Fi turned on.
- Each device is connected to the same network using Wi-Fi or Ethernet.
- On your iPhone, go to Settings > Phone > Calls on Other Devices, then turn on Allow Calls on Other Devices.
- On your iPad, go to Settings > FaceTime > Calls from iPhone, then turn on Calls from iPhone.
- On your Mac, open the FaceTime app, choose FaceTime > Settings (or Preferences), then select Calls From iPhone.
If your carrier supports Wi-Fi calling on other devices, you can set up those devices to make and receive calls even when your iPhone isn't turned on or nearby. Learn about Wi-Fi calling."
You can find these steps along with other information that may be helpful, here: Make and receive phone calls on Mac or iPad - Apple Support
We also recommend restarting your devices and keeping them updated as those steps assure you have cleared out any minor software issues and are running the most current version.
Update macOS on Mac - Apple Support
Update your iPhone or iPad - Apple Support
If you still have questions, reach out to Apple Support directly, as this may require closer guidance: Get Support
Cheers!
