GN Netcom GN 9120 Professional Headset "beeping louder" Questions

i have a gn9120 headset that i love. suddenly, callers are complaining that they can't hear me. Is there volume adjustment or is there a defect? Hi, Volume adjustment is made by depressing the two + ...

...beeping. I'm sure with a little ingenuity and radio shack you could make one. Something interesting was happing with mine; Whenever I cough, I hear the "bee-bee-bee" like I've got an incoming call. ...