Whenever anyone speaks on Vox, their name appears in the top right corner and stays there for about a second or so after they finish speaking, so glancing up at the top right corner when you hear someone talk will always tell you who it is. If their name appears in Yellow, they are talking on a tuned channel (not necessarily one you are tuned to; for example if you join a Mission, you will
hear the Mission vox even if you are not tuned to Mission on vox yourself; similarly someone can tune to you privately and talk to you), if their name appears in Purple, they are talking on the Room/Range channel.
There is an excellent site on
Using the Radio at Netaces.org, which fully explains all aspects of the AH radio system.
