Computer USB Headsets Troubleshooting: No Transmit on Mac 10.4.10
QuestionUSB Troubleshooting: No Transmit on Mac 10.4.10
AnswerThe following applies only to Macintosh computers running Mac OS X 10.4.10. If you experience no transmit (i.e. the mic doesn't seem to work), please try the following:
1) Make sure your Plantronics microphone is plugged into an open USB port on your computer.
2) Launch "Audio MIDI Setup.app." (You will find this application in Applications> Utilities.)
3). In System Settings, select "Plantronics Headset" as the default input.
4). In "Properties For:" select "Plantronics Headset."
5). In the bottom right area of the window, uncheck "Mute."