I have an 'old' sigtronics headset 'multiplier', standard issue Transair etc. It has an audio out (for recording your flight to review afterwards??!!), and an audio in (for the ipod?!). I have found, for less than GBP10, the adaptors and leads to connect my single 2.5mm in-out on the Iridium, to the in and out 3.5mm sockets on the box. It all works perfectly on the ground (you even get the ringing in the headphones).
I am waiting for an 'external' antenna, to put as far forward as possible under the plexi.
Realtime testing next week, I'll keep you informed.
Sam.
PS the 2.5mm is pretty much industry standard on mobile (cell) phones, so this will also work with your normal 'phone - cue discussion about connecting to a terrestrial gsm network from the air...
