Facetime not ringing for incoming calls on Macbook Pro

Re: "New Macbook Pro : "Facetime does not ring if I receive a call".

Guessing you have checked "do not disturb" is not turned on, and the volume is set high enough for alerts.

Does checking through the FaceTime settings, or

switching to a different ringtone make a difference

Change General settings in FaceTime on Mac - Apple Support

You may want to make sure:

✽ your settings "Allow notifications from FaceTime"

✽ you have selected a FaceTime alert style, and

✽ "Play Sound for notifications" has been selected.

More info: Use Notification Center on Mac - Apple Support

Else: Wondering if updating to the newest available MacOS version may help:

What's new in the updates for macOS Sonoma - Apple Support

Eg: says macOS Sequoia 15.4.1

and "This update provides important bug fixes and security updates and is recommended for all users."

(NB: Reminder: It is always wise to back up your Mac before updating MacOS)

FaceTime generally requires a strong wi-fi signal between Apple to Apple devices

Wondering if your Mom is contacting you using cellular data or over wi-fi ... using android or Apple

Troubleshooting: If you can’t make or receive calls in FaceTime on Mac - Apple Support

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If needed: More info: / support / contact options (online chat / phone / email etc.):

The FaceTime Support Team's Website: FaceTime - Official Apple Support