Try makinging sure that the little rubber nub on the headset is touching your face. This nub has to be in contact with your cheak for the mic to work.
I decided to jump into the 21st century by buying Jawbone's Bluetooth headset.
The problem is that anybody that I try to talk with over the unit -- that caller can not hear my voice. Occasionally, there is static and once or twice their was sound for the other end. I use Verizon wireless. I replaced the Jawbone and the cell phone. Same problem. I know that the Samsung A870 uses Bluetooth ver 1.2 which is supported by Jawbone.
I can hear myself talk very clear over the Jawbone headset but nobody that I talk with can hear me. Yikes!
Anybody have any suggestions???
Thanks a Million!!