Hi, I have the following problem. Before to launch pjsip 1.12, I execute an application that uses audio. After I try to launch pjsip (on ubuntu 10.04 and compiled with normal ./configure), if I launch it normally it does not crash but audio doesn't work both in input and output. If instead I launch it using ./pjsua-i686-pc-linux-gnu --capture-dev=1 -playback-dev=1 -clock-rate 8000 immediately it crashes with the following message What I suppose is that the problem is related to the fact that the audio resource is locked by the first application that I launch. Crashing I see the following trace: Expression 'ValidateParameters (outputParameters, outputDeviceInfo,StreamMode_Out)' failed in 'src/../../../portaudio/src/hostapi/os/pa_unix_oss.c', line:1206 . This happens anyway (because in the first application that works with audio I can choose if I can use alsa or pulseaudio). The problem persist also if I try to recompile pjsip using ./configure -disable-oss It seems that the problem is similar to this one <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/2011-February/012591 .html> http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/2011-February/012591. html In this case it is possible that the issue has not been solved. As further information, when I launch the configure command I see Checking alsa/version.h usability. no Checking alsa/version.h presence. no Checking alsa/version.h . no I tried also to use alsa instead of PortAudio, specify the following in your config_site.h: #define PJMEDIA_AUDIO_DEV_HAS_ALSA 1 #undef PJMEDIA_AUDIO_DEV_HAS_PORTAUDIO #define PJMEDIA_AUDIO_DEV_HAS_PORTAUDIO 0 But the compilation with make dep && make is not successfully. How I can solve my issue? Have a nice day G. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20111118/0702273a/attachment.html>