HLSS Help!

[Lava]

I would like to know if someone knows the command to start HLSS in Css since this command dosnt work

alias hlss-START "voice_inputfromfile 1; voice_loopback 1; +voicerecord; alias ToggleWAV hlss-STOP"
alias hlss-STOP "voice_inputfromfile 0; voice_loopback 0; -voicerecord; alias ToggleWAV hlss-START"
alias ToggleWAV "hlss-START"
voice_fadeouttime 0

Now i would like to know the real one and if this is it My Console says unknown command alias