Well, I got an HTC adapter from a friend with a Mogul that connects to the Tilt (it fits) and splits into a 2.5mm and mini-usb jack. All was fine until recently when people started telling me that they were having trouble hearing me, and one who told me to take them off speaker. I just did a test by calling my voicemail and putting the phone in a closed drawer. The voicemail was empty, so obviously, the microphone on the headset wasn't being used - it was using the mic on the phone instead. Is this the way it is supposed to work or do I have either a defective Tilt or a defective adapter?