Telex 750 in CRJ issue
Been trying Telex 750 in the CRJ-700/900.
Mostly because a longer flight means most headsets clamp my head too much.
99% of the time, I love the Telex. Lightweight, clarity not as good as I'd like but it's ok.
However, twice now, I've had an issue: I can't transmit. I can hear just fine, but I key up and nothing goes out; captain can't hear me on intercom.
Is there something I'm unaware of that I'm doing or not doing??
Other than those 2 cases, I just plug in and go- I can hear and be heard. No problems.
Ideas? Faulty headset?