A very informative response Rubik.
Genghis, in the 13 years I've been with my current employer in Orstraya (DH8, BAe146, B717) they've provided headsets.
From memory DC of some persuasion in the DH8, I used my personal H10-80. On the BAe146 and B717 the Co provides a telex of some sort; light weight, poor quality Rx & Tx. In the 146 I started with the trusty H10-80 then moved to a Bose-X.
The Bose wasn't really suited to the B717. As the Douglas-Boeing has no intercom, one had to keep an ear muff clear of one's ear to listen to Bloggs. Additionally, if one changed seats (LH to RH or vice versa) one needed a philips head screwdriver to change the boom mic and the security nazis wouldn't allow that!
On the 717 I use a Plantronics MS250, single earpiece, light weight headset.
My reasons for using a personal headset are, audio quality, and having watched a lot of Bloggs spit on and suck on the Mic, I don't like the idea of puting the things near my mouth.
