phone ringing

See the following from Make and receive calls on your Mac, iPad, or iPod touch - Apple Support

• On your iPhone, go to Settings > Phone > Calls on Other Devices, then turn on Allow Calls on Other Devices.
• On your iPad or iPod touch, go to Settings > FaceTime, then turn on Calls from iPhone.

Also note that it is generally not recommended to share an Apple ID with other people. It can cause a number of issues, especially when using any iCloud services such as iCloud Photos. You can each have your own ID and still share selected things via Family Sharing. Family Sharing - Apple Support

Hi FoxFifth,

I believe that OP wants to "Stop this behavior". I read OPs post as the calls are already going to the two iPads and that needs to be stopped. I therefore think that, in your response, you actually meant to turn those features OFF rather than ON. Correct?

Axel F.

Correct -- I'm obviously not awake yet; just had my first sip of coffee! Thanks.