把这些考到记事本保存成.reg文件：
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\Software\HTC\AUDIOGAIN] "AUDIO_DEBUG_FLAG"=dword:00000040 [HKEY_LOCAL_MACHINE\Drivers\BuiltIn\RIL]
"RingingAddressId"=dword:00000000 [HKEY_LOCAL_MACHINE\Drivers\BuiltIn\WaveDev] "VocRecPath"=dword:00000002
以下机型都可以用改注册表来实现HTC TOUCH HD HTC TOUCH PRO HTC TOUCH 3G HTC TOUCH/S1, S1+/P3450 HTC P4550/TYTNII/KAISER HTC P800W HTC D600 HTC P800 HTC P860/CRUISE HTC P660 HTC P3300 HTC 838 HTC 830 O2 FLAME