Help! iPhone is sending calls to Bluetooth

[Toymaker]

Hi,

I have the iPhone 4 with iOS 5.0 and I have noticed a problem that if I am talking to someone using my iPhone up to my ear, it randomly pushes the conversation to any bluetooth device that it is paired to.
Anybody having this probelm? Any solutions out there?

 

[cariduros]

That's what it's supposed to do. You can either unpair it or choose iPhone or speaker as the audio option during the call.


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[Toymaker]

If I answer a call using the iPhone itself, I don't want it to push the call to Bluetooth after several minutes. One minute I'm working in my garage, talking to my wife and the next minute I hear her on the speakerphone in the car. It never used to do this before in iOS 4 and I thought the proximity sensor was supposed to keep that from happening.