Team talk is working now!

We now have an option to talk to your team. Put the following code in your autoexec.cfg file (located at Steam/Steamapps/%username%/team fortress 2/tf/cfg. If not located, make a file named as such).

alias "+teamtalk" "voiceall; +voicerecord"
alias "-teamtalk" "-voicerecord; voiceall"
bind <key> "+teamtalk"

Change <key> to the key you want for the bind. Thanks to Anykey getting it working.

Example, mine:

alias "+teamtalk" "voiceall; +voicerecord"
alias "-teamtalk" "-voicerecord; voiceall"
bind c "+teamtalk"