And if you've got a music input to the aircraft intercom you can probably even hook the walkie talkie up so you get the audio in your headset...
Could probably also put in a second PTT button on the yoke too! :-) So is the general consensus that in the UK FIRs - the only "available method" of having air to air chat is by using non-airband walkie-talkie.
I was just wondering what people did here and if there was any non-official or official air - air chat frequency!