[Help] J2ME BlueTooth A2DP/HSP Connection Problem

[melord]

My demo plays some music with KVM Player. Now I want transport sound to Bluetooth headset(support A2DP & AVRCP). I can find three serive provided by headset. 1, Headset Unit, 2,HandsFree unit, 3,Audio Sink. I tried to connect to Headset and Audio sink. The first method result is connect ok, and received AT+VGS=13, AT+VGM=9 from headset. And in the cellphone Bluetooth device list, indicate the connection between cellphone and headset has been established, but the voice did not transport to headset. I tried send some AT command to headset, and it did not work yet, When I press the button of headset, the sound transport to headset. The second method result is: it blocked at create connection.
1,Why can’t transport sound to head in my demo automatically but cellphone does?
2,How I disconnect the connection? I close the connection in demo, but sound remain from headset, but cellphone does
The description Chinese as follow.

求助 J2ME连接A2DP/HSP问题
我的DEMO使用KVM播放音乐，现在我想将声音输出到蓝牙耳机上（支持A2DP & AVCRP）。搜索蓝牙耳机之后，找到了三种服务，分别为Headset unit, Handsfree unit和AudioSink。我试着连接headset和audio sink，结果如下：
1, 连接Headset提示连接成功，从耳机接收到AT+VGS=13, AT+VGM=9，从手机系统设置->蓝牙->匹配装置列表中看到手机已经和耳机连接上了，但是声音并没有传到耳机。我试着向耳机发送AT指令，但是也没有用。最后按下耳机接听键之后，声音才传到耳机上。
2, 创建连接时阻塞了，根本无法创建与audio sink的连接。
问题如下：
1, 我该怎样做才能使音频自动传输到耳机，为什么手机连接就行，而我创建的连接就不行呢？
2, 我该怎么断开音频连接，手机可以断开连接，但demo中将建立的连接close，声音还是从耳机发出

[njzk2]

what is your device? what does all these non-latin characters mean?