Dear All, Now, I port pjsip on android platform. I have few troubles on voice call. 1: Execute simpleua under beagle board 2: android media service block audio output device. So I got the log as below: 03:21:45.940 pa_dev.c PA message: OpenPcm: Failed to open busy device 'hw:0,0' 03:21:45.941 pa_dev.c PA message: Default input device: omap3beagle: (hw:0,0) 03:21:45.941 pa_dev.c PA message: FillInDevInfo: Adding device omap3beagle: (hw:0,0): 0 I try to modify code to route input/output voice data from/to AudioTrack and AudioRecord. But pjmedia_aud_stream_create() will check input/output device and return fail. Log as below: simpleua.c Unable to create sound player: Unable to find default audio device (PJMEDIA_EAUD_NODEFDEV) [code=420006] Is there any way to disable device checking? If I force to disable it, it causes segmentation fault. How can I make a call without checking audio device and play/record callback normally. Thanks for your BIG BIG help in advanced. BR, Duncan -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20091023/7460cbc9/attachment.html>