I can’t hear the second person on video call using Skype with the Samsung Galaxy Note 2.
Not to sound or be stupid, but is the "Media" sound turned up? Press the volume key, press the gear icon next to the volume bar and check the Media volume. Otherwise, if you haven't done so before, uninstall Skype and reinstall it. Sometimes the apps behind corrupt abd needs to be reinstalled.
sorry, *become corrupt
is it the same problem with wired headset?
are you in wifi connection?
battery saving application?