iPhone Mini 12 Only Rings Once

• Restart the device. That's it.
• Still not solved --> Force restart iPhone - Apple Support

Please check you may have enabled --> Settings > Accessibility > Touch > Call Audio Routing > Bluetooth [Ticked]

Please set it to Automatic.

Please see the pic below made on iPhone 12 Pro iOS 16.5. The two scenarios which I tested are given below and are self-explanatory

I need update my phone