I was wondering about this as well, but in a different way- is there a tool available to modify one's voice for use on VOIP (or, for that matter, for any application like TS/Vent) that would give it that 'staticky sound' like the in-game artillery radios and such? Or, can the in-game VOIP itself be modified to give this effect?
I know it's pretty frivolous, but it occurred to me that using something like that could be one more step towards the goal of 'immersion' that so many want; as I'm a tanker, it would go even further since there is virtually no opportunity to have a 'normal' conversation outside the vehicle (i.e., without 'static').