I have several bluetooth devices that connect to my Iphone but when I use the phone, I can not use the bluetooth. In other words. when on a call, pressing the speaker icon only switches between speaker and phone, it will not give the option to use bluetooth. It worked originally but stopprd a day ago. Is there a setting or conflict?
Solved the problem. Had to reset the phone. Used the on-off to power down the phone then power back on. Then, had to go to setting/general/bluetooth and re-pair the headset. Note: I did not have to delete the device.