我从一个用户（X）向另一个（Y）进行voip呼叫。当Y接听时，将激活呼叫音频。
Sending signal connect set to sound devices!!
Turning cap_dev -1 play_dev -2
app_config cap_dev -1 play_dev -1 16:17:52.265 pjsua_aud.c !Set sound device: capture=-1, playback=-1
16:17:52.265 pjsua_app.c .Turning sound device -1 -2 ON
16:17:52.265 pjsua_aud.c .Opening sound device (speaker + mic) PCM@16000/1/20ms
16:17:52.265 coreaudio_dev.c ..Using VoiceProcessingIO audio unit
16:17:52.824 coreaudio_dev.c ..core audio stream started
after setting device status_code is 0
Turning cap_dev -1 play_dev -2
当有GSM呼叫时，用户X按住保留并接受选项。这次音频被停用。
Sending signal to disconnect from sound devices!!
16:21:25.858 pjsua_app.c !.Turning sound device -1 -2 OFF
当GSM通话结束时，音频再次被激活。
pjsua_aud.c !Set sound device: capture=0, playback=0
16:45:45.131 pjsua_app.c .Turning sound device 0 0 ON
16:45:45.131 pjsua_aud.c .Opening sound device (speaker + mic) PCM@16000/1/20ms
16:45:45.132 coreaudio_dev.c ..Using VoiceProcessingIO audio unit
[aurioc] 1029: failed: '!pri' (enable 3, outf< 1 ch, 44100 Hz, Int16> inf< 1 ch, 44100 Hz, Int16>)
16:45:45.394 pjsua_aud.c .Unable to open sound device: Unknown error -560577449
我尝试使用0,0和-1，-2，但收到相同的错误.gsm通话结束后我听不到任何音频。如何解决此问题。任何点击都会对我有所帮助，谢谢。