User Guide
Page 16
... that the Listen Volume is centered on your mouth. Make sure the Headset Assembly is set properly. TROUBLESHOOTING CALLERS CANNOT HEAR ME For Voice Tube models, determine if the Voice Tube is positioned properly at the corner of your ear. If you have a separate Amplifier, verify that the Quick Disconnect™... a separate Amplifier, verify that the Speak Volume is installed correctly. If you have a separate Amplifier, verify that it is set properly. 10 For Noise-Canceling models, make sure the microphone is clogged or positioned improperly.
... that the Listen Volume is centered on your mouth. Make sure the Headset Assembly is set properly. TROUBLESHOOTING CALLERS CANNOT HEAR ME For Voice Tube models, determine if the Voice Tube is positioned properly at the corner of your ear. If you have a separate Amplifier, verify that the Quick Disconnect™... a separate Amplifier, verify that the Speak Volume is installed correctly. If you have a separate Amplifier, verify that it is set properly. 10 For Noise-Canceling models, make sure the microphone is clogged or positioned improperly.