Hello techhead24,
We would like to see how we can help you with your iPhone that is not ringing as expected. If you turn this feature off, and only allow phone calls to your iPhone, does it ring as expected? If so, try adding the other devices back on and let us know your results. This link will let you know how to access those settings: Allow phone calls on your iPad, iPod touch, and Mac - Apple Support
"Allow phone calls on your other devices from iPhone
You first set up your iPhone, and then set up your other devices.
- On your iPhone, go to Settings
> Cellular. - If your iPhone has Dual SIM, choose a line (below SIMs).
- Do any of the following:
- Tap Calls on Other Devices, turn on Allow Calls on Other Devices, then choose the devices on which you’d like to make and receive calls.
- Tap Wi-Fi Calling, then turn on Add Wi-Fi Calling For Other Devices.
- This allows other devices where you’re signed in with the same Apple ID to make and receive calls even when your iPhone isn’t nearby.
4.On your other devices, do the following:
- On your iPad or iPod touch: Go to Settings > FaceTime, then turn on FaceTime and Calls from iPhone. If you’re asked, turn on Wi-Fi Calling.
- On your Mac: Open FaceTime, choose FaceTime > Preferences > Settings, then select Calls from iPhone. If an Upgrade to Wi-Fi Calling button appears, click it, then follow the instructions."
Cheers!