iPhone rings once only
Often in fact most times the phone rings once and then goes silent. Attention Award is off. Same problem with alarms. Frustrating as I can’t rely upon an alarm waking me up. Bloody useless. Running latest IOS on a 13Pro
Often in fact most times the phone rings once and then goes silent. Attention Award is off. Same problem with alarms. Frustrating as I can’t rely upon an alarm waking me up. Bloody useless. Running latest IOS on a 13Pro

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
iPhone rings once only