Hi I got the following port audio error when trying to run "pa call" Could someone guide me on how to resolve it? freeswitch@vps57327.vps.ovh.ca> pa call 1001 2016-01-17 05:35:36.321035 [NOTICE] switch_channel.c:1091 New Channel portaudio/1001 [0b65649e-bd06-11e5-bb1d-bb7b62f579b9] Expression 'ret' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1025 Expression 'AlsaOpen( &alsaApi->baseHostApiRep, params, streamDir, &self->pcm )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1182 Expression 'PaAlsaStreamComponent_Initialize( &self->capture, alsaApi, inParams, StreamDirection_In, NULL != callback )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1409 Expression 'PaAlsaStream_Initialize( stream, alsaHostApi, inputParameters, outputParameters, sampleRate, framesPerBuffer, callback, streamFlags, userData )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1990 2016-01-17 05:35:37.881020 [ERR] mod_portaudio.c:2428 Error opening audio device retrying Expression 'ret' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1025 Expression 'AlsaOpen( &alsaApi->baseHostApiRep, params, streamDir, &self->pcm )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1182 Expression 'PaAlsaStreamComponent_Initialize( &self->capture, alsaApi, inParams, StreamDirection_In, NULL != callback )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1409 Expression 'PaAlsaStream_Initialize( stream, alsaHostApi, inputParameters, outputParameters, sampleRate, framesPerBuffer, callback, streamFlags, userData )' failed in 'src/hostapi/alsa/pa_linux_alsa.c', line: 1990 FAIL:Device Error! 2016-01-17 05:35:40.421041 [ERR] mod_portaudio.c:2435 Can't open audio device 2016-01-17 05:35:40.421041 [NOTICE] mod_portaudio.c:3049 Close Channel portaudio/1001 [CS_NEW]