Hi Nanang, I got it working now ! Thank you and Benny for great work! When I make the call, I can get full conversation, everything is perfect! But when I receive a all, the E61 don't have ring tone and no sound on E61's earpiece(I can't hear anything from E61). The voice is looping at another end. Also, the call expired very quick. Any instructions would be really appreciate! Thanks a mill, Sen