The Bluetooth on Windows Phone does not support the required profile and this has various effects such as a custom ringtones are not forwarded from a device to the Bluetooth Headset (respectively set to default).
- How can I recover/reset/restore my phone software?
- How can I prolong the battery life of my Lumia phone?
- I cannot connect to the internet using a mobile data connection on my Lumia phone
- How do I get week numbers to my Lumia calendar?
- My Lumia touch screen is not responding or is responding the wrong way