I've recently purchased the Plantronics Savor M1100 bluetooth headset.
My problem is that once the BT headset is connected to the phone, every alert sound (except from the incoming calls), which means messages, mails, keyboard sounds and game sounds, only comes through the BT headset and not from the phone's speakers.
So if a message or a mail comes in, I can't hear it, unless I have the BT headset on, which is not convenient at all !!!
My understanding is that it has something to do with the A2DP profile.
I've tried "forgetting" and re-pairing the headset, but it doesn't seem to work.
The weirdest thing is that prior to that, I had the Discovery 975 and everything was working just fine...
iPhone 4, iOS 6.0.1, Bluetooth Headset Plantronics Savor