Board Thread:Questions and Answers/@comment-99.244.123.218-20130131020655/@comment-6326483-20130206025447

that is for txt chat, to do voice chat just look in your general keybindings in setting. Rebind as necessary. I have squad voice chat on Q, with the original action of spot for that key set to left alt. Rebind the tab change to something else not used, or just screw around like i did. You dont have to use the default keybindings, remember.