Andrew,

What you need it Teamspeak2 (the client... not the server) and TComSelect.  I THINK both are in the SimV library.

If the flight server you are using has it set up for Teamspeak that way......... Teamspeak supports multiple "channels" or radio frequencies.  The TComSelect allows you to tune Teamspeak using the controls on either the virtual radios ... or hardware radios (like the Goflight VR166 panels).

Everyone has to agree on what "frequencies" will be used.  So one freq becomes Clearance Delivery, one is Ground, one is Tower, one is Approach, one is Center and so on.

Works slick as heck.

BTW....... You'll probably get more info if you had posted this in "multiplayer".

best,

.................john