When I call with Line apk, its show text " Error microphone/speaker" and then closed. if I call with BBM apk, I can hear and see video my friend but he isn't hear my voice. But if I call with Whatsapp, everthing its okay and normal call its okay too. :-)
Well I suggest you to speak into the secondary mic :) If your friend can hear you - switch sec. mic off and you are good. If not - you are welcome to ask Line support :)
When I call with Line apk, its show text " Error microphone/speaker" and then closed. if I call with BBM apk, I can hear and see video my friend but he isn't hear my voice. But if I call with Whatsapp, everthing its okay and normal call its okay too. :-)